W. de Boer

Publication List Details

Period

1974 - 2009

Number

890

Co-Authors

Indirect Dark Matter Signals from EGRET and PAMELA compared (2009)

De Boer, W.

Dark Matter annihilation (DMA) may yield an excess of gamma rays and antimatter particles, like antiprotons and positrons, above the background from cosmic ray interactions. The excess of diffuse...

Indirect Dark Matter Signals (2008)

De Boer, W.

Dark Matter annihilation (DMA) may yield an excess of gamma rays and antimatter particles, like antiprotons and positrons, above the background from cosmic ray interactions. Several signatures,...

Di-jet production in gammagamma collisions at LEP2 (2008)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany-Fernandez, R., ...

The production of two high-p T jets in the interactions of quasi-real photons in e + e − collisions at $\sqrt{s_{ee}}$ from 189 GeV to 209 GeV is studied with data corresponding to an...

Observation of the muon inner bremsstrahlung at LEP1 (2008)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany-Fernandez, R., ...

Muon bremsstrahlung photons converted in front of the DELPHI main tracker (TPC) in dimuon events at LEP1 were studied in two photon kinematic ranges: 0.2 < Eγ ≤ 1 GeV and transverse...

Observation of the muon inner bremsstrahlung at LEP1 (2008)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany-Fernandez, R., ...

Muon bremsstrahlung photons converted in front of the DELPHI main tracker (TPC) in dimuon events at LEP1 were studied in two photon kinematic ranges: 0.2 < Eγ ≤ 1 GeV and transverse...

Di-jet production in gammagamma collisions at LEP2 (2008)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany-Fernandez, R., ...

The production of two high-p T jets in the interactions of quasi-real photons in e + e − collisions at $\sqrt{s_{ee}}$ from 189 GeV to 209 GeV is studied with data corresponding to an...

Observation of the muon inner bremsstrahlung at LEP1 (2008)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany-Fernandez, R., ...

Muon bremsstrahlung photons converted in front of the DELPHI main tracker (TPC) in dimuon events at LEP1 were studied in two photon kinematic ranges: 0.2 < Eγ ≤ 1 GeV and transverse...

Di-jet production in gammagamma collisions at LEP2 (2008)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany-Fernandez, R., ...

The production of two high-p T jets in the interactions of quasi-real photons in e + e − collisions at $\sqrt{s_{ee}}$ from 189 GeV to 209 GeV is studied with data corresponding to an...

The dark connection between the Canis Major dwarf, the Monoceros ring, the gas flaring, the rotation curve and the EGRET excess of diffuse Galactic Gamma Rays (2007)

De Boer, W., Gebauer, I., Weber, M., Sander, C., Zhukov, V., Kazakov, D.

The excess of diffuse galactic gamma rays above 1 GeV, as observed by the EGRET telescope on the NASA Compton Gamma Ray Observatory, shows all the key features from Dark Matter (DM) annihilation: (i)...

Confinement of Cosmic Rays in Dark Matter clumps (2007)

De Boer, W., Zhukov, V.

Some part of the relic Dark Matter is distributed in small-scale clumps which survived structure formation in inflation cosmological scenario. The annihilation of DM inside these clumps is a strong...

Search for pentaquarks in the hadronic decays of the Z boson with the DELPHI detector at LEP (2007)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany-Fernandez, R., ...

The quark model does not exclude states composed of more than three quarks, like pentaquark systems. Controversial evidence for such states has been published in the last years, in particular: for a...

Search for pentaquarks in the hadronic decays of the Z boson with the DELPHI detector at LEP (2007)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany-Fernández, R., ...

10 pages, 5 figures.-- ISI Article Identifier: 000250074000007.-- ArXiv pre-print available at: http://arxiv.org/abs/0708.0415.-- Printed version published on Sep 20, 2008.

Study of Triple-Gauge-Boson Couplings ZZZ, ZZ$\gamma\gamma$ and Z$\gamma\gamma$ at LEP (2007)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Neutral triple-gauge-boson couplings ZZZ, ZZgam and Zgamgam have been studied with the DELPHI detector using data at energies between 183 and 208 GeV. Limits are derived on these couplings from an...

Z$\gamma*$ production in $e^+e^-$ interactions at $\sqrt{s}$ = 183 - 209 GeV (2007)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Measurements of Zgamma* production are presented using data collected by the DELPHI detector at centre-of-mass energies ranging from 183 to 209 GeV, corresponding to an integrated luminosity of about...

Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2 (2007)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

In the reaction e+e- -> WW -> (q_1 qbar_2)(q_3 qbar_4) the usual hadronization models treat the colour singlets q_1 qbar_2 and q_3 qbar_4 coming from two W bosons independently. However, since the...

Zγ* production in e(+)e(-) interactions at sqrt{s}=183-209 GeV (2007)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany-Fernández, R., ...

21 pages, 13 figures.-- ISI Article Identifier: 000248390700001.-- ArXiv pre-print available at: http://arxiv.org/abs/0706.2565

Study of triple-gauge-boson couplings ZZZ, ZZγ and Zγγ at LEP (2007)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany-Fernández, R., ...

18 pages, 10 figures.-- ISI Article Identifier: 000248390700002.-- Printed version published on Aug 2007.-- ArXiv pre-print available at: http://arxiv.org/abs/0706.2741

Diamond thin Film Detectors for Beam Monitoring Devices (2007)

Bol, J., Mueller, S., Berderman, E., De Boer, W., Furgeri, A., Pomorski, M., ...

Diamonds offer radiation hard sensors, which can be used directly in primary beams. Here we report on the use of a polycrystalline CVD diamond strip sensor as beam monitor of heavy ion beams with up...

Study of multi-muon bundles in cosmic ray showers detected with the DELPHI detector at LEP (2007)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany-Fernández, R., ...

14 pages, 17 figures.-- PACS nrs.: 98.70.Sa, 13.85.Tp, 96.40.De.-- ISI Article Identifier: 000250887400002.-- ArXiv pre-print available at: http://arxiv.org/abs/0706.2561.-- Printed version published...

Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2 (2007)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany-Fernández, R., ...

21 pages, 18 figures.-- ISI Article Identifier: 000248261900001.-- ArXiv pre-print available at: http://arxiv.org/abs/0704.0597

Search for a fourth generation b'-quark at LEP-II at sqrt{s}=196-209 GeV (2007)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany-Fernández, R., ...

12 pages, 12 figures.-- ISI Article Identifier: 000245853100001.-- ArXiv pre-print available: http://arxiv.org/pdf/0704.0594

CMS physics technical design report, volume II: Physics performance (2007)

Bayatian, G. L., Chatrchyan, S., Hmayakyan, G., Sirunyan, A. M., Adam, W., Bergauer, T., ...

CMS is a general purpose experiment, designed to study the physics of pp collisions at 14 TeV at the Large Hadron Collider ( LHC). It currently involves more than 2000 physicists from more than 150...

Suche nach Dunkler Materie in unserer Galaxie. (2007)

Eitel, K., De Boer, W.

Nachrichten - Forschungszentrum Karlsruhe, 39(2007) S.55-62

Is the Dark Matter interpretation of the EGRET gamma ray excess compatible with antiproton measurements? (2006)

De Boer, W., Gebauer, I., Sander, C., Weber, M., Zhukov, V.

The diffuse galactic EGRET gamma ray data show a clear excess for energies above 1 GeV in comparison with the expectations from conventional galactic models. This excess shows all the features...

Search for charginos nearly mass-degenerate with the lightest neutralino (2006)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for charginos with masses close to the mass of the lightest neutralino is reported, based on the data collected with the DELPHI detector at LEP from 1995 to 1997 at centre-of-mass energies...

Measurement of the forward backward asymmetry of c and b quarks at the Z pole using reconstructed D mesons (2006)

Abreu, P., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., ...

A measurement of the forward--backward asymmetry of $e^{+}e^{-} \to c\bar{c}$ and $e^{+}e^{-} \to b\bar{b}$ on the $Z$ resonance is performed using about 3.5 million hadronic $Z$ decays collected by...

Search for lightest neutralino and stau pair production in light gravitino scenarios with stau NLSP (2006)

Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...

Promptly decaying lightest neutralinos and long-lived staus are searched for in the context of light gravitino scenarios. It is assumed that the stau is the next to lightest supersymmetric particle...

Search for lightest neutralino and stau pair production in light gravitino scenarios with stau NLSP (2006)

Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...

Promptly decaying lightest neutralinos and long-lived staus are searched for in the context of light gravitino scenarios. It is assumed that the stau is the next to lightest supersymmetric particle...

Measurement of the forward backward asymmetry of c and b quarks at the Z pole using reconstructed D mesons (2006)

Abreu, P., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., ...

A measurement of the forward--backward asymmetry of $e^{+}e^{-} \to c\bar{c}$ and $e^{+}e^{-} \to b\bar{b}$ on the $Z$ resonance is performed using about 3.5 million hadronic $Z$ decays collected by...

Search for charginos nearly mass-degenerate with the lightest neutralino (2006)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for charginos with masses close to the mass of the lightest neutralino is reported, based on the data collected with the DELPHI detector at LEP from 1995 to 1997 at centre-of-mass energies...

Search for lightest neutralino and stau pair production in light gravitino scenarios with stau NLSP (2006)

Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...

Promptly decaying lightest neutralinos and long-lived staus are searched for in the context of light gravitino scenarios. It is assumed that the stau is the next to lightest supersymmetric particle...

Measurement of the forward backward asymmetry of c and b quarks at the Z pole using reconstructed D mesons (2006)

Abreu, P., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., ...

A measurement of the forward--backward asymmetry of $e^{+}e^{-} \to c\bar{c}$ and $e^{+}e^{-} \to b\bar{b}$ on the $Z$ resonance is performed using about 3.5 million hadronic $Z$ decays collected by...

Search for charginos nearly mass-degenerate with the lightest neutralino (2006)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for charginos with masses close to the mass of the lightest neutralino is reported, based on the data collected with the DELPHI detector at LEP from 1995 to 1997 at centre-of-mass energies...

Single Intermediate Vector Boson Production in $e^+ e^-$ collisions at $\sqrt{s}$ = 183 and 189 GeV (2006)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the DELPHI...

Single Intermediate Vector Boson Production in $e^+ e^-$ collisions at $\sqrt{s}$ = 183 and 189 GeV (2006)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the DELPHI...

Single Intermediate Vector Boson Production in $e^+ e^-$ collisions at $\sqrt{s}$ = 183 and 189 GeV (2006)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the DELPHI...

Study of double-tagged $\gamma\gamma$ events at LEP2 (2006)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Double-tagged interactions of photons with virtualities Q^2 between 10GeV^2 and 200GeV^2 are studied with the data collected by DELPHI at LEP2 from 1998 to 2000, corresponding to an integrated...

Study of double-tagged $\gamma\gamma$ events at LEP2 (2006)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Double-tagged interactions of photons with virtualities Q^2 between 10GeV^2 and 200GeV^2 are studied with the data collected by DELPHI at LEP2 from 1998 to 2000, corresponding to an integrated...

Study of double-tagged $\gamma\gamma$ events at LEP2 (2006)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Double-tagged interactions of photons with virtualities Q^2 between 10GeV^2 and 200GeV^2 are studied with the data collected by DELPHI at LEP2 from 1998 to 2000, corresponding to an integrated...

Search for neutral MSSM Higgs bosons at LEP (2006)

Schael, S., Barate, R., Bruneliere, R., De Bonis, I., Decamp, D., Goy, C., ...

The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric standard model (MSSM). The data of the four...

A measurement of the tau hadronic branching ratios (2006)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The exclusive and semi-exclusive branching ratios of the tau lepton hadronic decay modes (h^-nu_tau, h^-pi0nu_tau, h^-pi0pi0nu_tau, h^- >= 2pi0nu_tau, h^- >= 3pi0nu_tau, 2h^-h^+nu_tau,...

Determination of the b quark mass at the $M_Z$ scale with the DELPHI detector at LEP (2006)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

An experimental study of the normalized three-jet rate of b quark events with respect to light quark events (light= l = u,d,s) has been performed using the CAMBRIDGE and DURHAM jet algorithms. The...

Search for neutral MSSM Higgs bosons at LEP (2006)

Achard, P., Adriani, O., Aguilar-Benítez, M., Alcaraz, J., Alemanni, G., Allaby, J., ...

The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four...

Search for neutral MSSM Higgs bosons at LEP (2006)

Achard, P., Adriani, O., Aguilar-Benítez, M., Alcaraz, J., Alemanni, G., Allaby, J., ...

The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four...

Determination of the b quark mass at the $M_Z$ scale with the DELPHI detector at LEP (2006)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

An experimental study of the normalized three-jet rate of b quark events with respect to light quark events (light= l = u,d,s) has been performed using the CAMBRIDGE and DURHAM jet algorithms. The...

A measurement of the tau hadronic branching ratios (2006)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The exclusive and semi-exclusive branching ratios of the tau lepton hadronic decay modes (h^-nu_tau, h^-pi0nu_tau, h^-pi0pi0nu_tau, h^- >= 2pi0nu_tau, h^- >= 3pi0nu_tau, 2h^-h^+nu_tau,...

Search for neutral MSSM Higgs bosons at LEP (2006)

Achard, P., Adriani, O., Aguilar-Benítez, M., Alcaraz, J., Alemanni, G., Allaby, J., ...

The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four...

Determination of the b quark mass at the $M_Z$ scale with the DELPHI detector at LEP (2006)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

An experimental study of the normalized three-jet rate of b quark events with respect to light quark events (light= l = u,d,s) has been performed using the CAMBRIDGE and DURHAM jet algorithms. The...

A measurement of the tau hadronic branching ratios (2006)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The exclusive and semi-exclusive branching ratios of the tau lepton hadronic decay modes (h^-nu_tau, h^-pi0nu_tau, h^-pi0pi0nu_tau, h^- >= 2pi0nu_tau, h^- >= 3pi0nu_tau, 2h^-h^+nu_tau,...

The supersymmetric interpretation of the EGRET excess of diffuse Galactic gamma rays (2005)

De Boer, W., Sander, C., Zhukov, V., Gladyshev, A. V., Kazakov, D. I.

Recently it was shown that the excess of diffuse Galactic gamma rays above 1 GeV traces the Dark Matter halo, as proven by reconstructing the peculiar shape of the rotation curve of our Galaxy from...

The measurement of $\alpha_{s}$ from event shapes with the DELPHI detector at the highest LEP energies (2005)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Hadronic event shape distributions are determined from data in e+e- collisions between 183 and 207 GeV. From these the strong coupling alpha_s is extracted in O(alpha_s^2), NLLA and matched...

The measurement of $\alpha_{s}$ from event shapes with the DELPHI detector at the highest LEP energies (2005)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Hadronic event shape distributions are determined from data in e+e- collisions between 183 and 207 GeV. From these the strong coupling alpha_s is extracted in O(alpha_s^2), NLLA and matched...

The measurement of $\alpha_{s}$ from event shapes with the DELPHI detector at the highest LEP energies (2005)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Hadronic event shape distributions are determined from data in e+e- collisions between 183 and 207 GeV. From these the strong coupling alpha_s is extracted in O(alpha_s^2), NLLA and matched...

Radiation-hard semiconductor detectors for SuperLHC (2005)

Bruzzi, M., Adey, J., Al-Ajili, A., Alexandrov, P., Alfieri, G., Allport, P. P., ...

An option of increasing the luminosity of the Large Hadron Collider (LHC) at CERN to 1035 cm-2 s-1 has been envisaged to extend the physics reach of the machine. An efficient tracking down to a few...

Development of radiation tolerant semiconductor detectors for the Super-LHC (2005)

Moll, M., Adey, J., Al-Ajili, A., Alfieri, G., Allport, P. P., Artuso, M., ...

The envisaged upgrade of the Large Hadron Collider (LHC) at CERN towards the Super-LHC (SLHC) with a 10 times increased luminosity of 10(35) cm(-2) s(-1) Will present severe challenges for the...

Search for $B_{s}^{0}_\overline{B_{s}^{0}}$ oscillations in DELPHI using high-$p_{t}$ leptons (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Oscillations in the B0_s - anti-B0_s system were studied in events selected from about 4.3 million hadronic Z^0 decays registered by DELPHI between 1992 and 2000. This paper presents updates of two...

Search for single top production via FCNC at LEP at $\sqrt{s}$ = 189-208 GeV (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A search for single top production ( e+e− ! t¯c ) via Flavour Changing Neutral Currents (FCNC) was performed using the data taken by the DELPHI detector at LEP2. The data analysed have been...

Measurement of the forward-backward asymmetries of $e^+e^- \rightarrow Z \rightarrow b\overline{b}$ and $e^+e^- \rightarrow Z \rightarrow c\overline{c}$ using prompt leptons (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The forward-backward asymmetries of the processes $e^+e^- \rightarrow Z \rightarrow b \overline{b}$ and $e^+e^- \rightarrow Z \rightarrow c \overline{c}$ were measured from a sample of hadronic...

Search for SUSY in the AMSB scenario with the DELPHI detector (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The DELPHI experiment at the LEP $ {\, \mathrm e}^+ {\mathrm e}^- $ collider collected almost 700 pb-1 at centre-of-mass energies above the Z0 mass pole and up to 208 GeV. Those data were used to...

Measurement of the $\Lambda^0_b$ decay form factor (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The form factor of Λ0 b baryons is estimated using 3.46×106 hadronic Z decays collected by the DELPHI experiment between 1992 and 1995. Charmed Λ+c baryons fully reconstructed in the...

Searches for invisibly decaying Higgs bosons with the DELPHI detector at LEP (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Searches for H Z production with the Higgs boson decaying into an invisible final state were performed using the data collected by the DELPHI experiment at centre-of-mass energies between 188 GeV and...

b-tagging in DELPHI at LEP (2004)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, T., Alderweireld, T., ...

The standard method used for tagging b-hadrons in the DELPHI experiment at the CERN LEP Collider is discussed in detail. The main ingredient of b-tagging is the impact parameters of tracks, which...

Final results from DELPHI on the searches for SM and MSSM neutral Higgs bosons (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

These final results from DELPHI searches for the Standard Model (SM) Higgs boson, together with benchmark scans of the Minimal Supersymmetric Standard Model (MSSM) neutral Higgs bosons, used data...

New developments in CVD diamond for detector applications (2004)

Adam, A., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., Borchi, E., ...

Chemical Vapor Deposition (CVD) diamond has been discussed extensively as an alternative sensor material for use very close to the interaction region of the LHC and other machines where extreme...

Searches for invisibly decaying Higgs bosons with the DELPHI detector at LEP (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Searches for H Z production with the Higgs boson decaying into an invisible final state were performed using the data collected by the DELPHI experiment at centre-of-mass energies between 188 GeV and...

Final results from DELPHI on the searches for SM and MSSM neutral Higgs bosons (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

These final results from DELPHI searches for the Standard Model (SM) Higgs boson, together with benchmark scans of the Minimal Supersymmetric Standard Model (MSSM) neutral Higgs bosons, used data...

b-tagging in DELPHI at LEP (2004)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, T., Alderweireld, T., ...

The standard method used for tagging b-hadrons in the DELPHI experiment at the CERN LEP Collider is discussed in detail. The main ingredient of b-tagging is the impact parameters of tracks, which...

Search for $B_{s}^{0}_\overline{B_{s}^{0}}$ oscillations in DELPHI using high-$p_{t}$ leptons (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Oscillations in the B0_s - anti-B0_s system were studied in events selected from about 4.3 million hadronic Z^0 decays registered by DELPHI between 1992 and 2000. This paper presents updates of two...

Measurement of the $\Lambda^0_b$ decay form factor (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The form factor of Λ0 b baryons is estimated using 3.46×106 hadronic Z decays collected by the DELPHI experiment between 1992 and 1995. Charmed Λ+c baryons fully reconstructed in the...

Search for SUSY in the AMSB scenario with the DELPHI detector (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The DELPHI experiment at the LEP $ {\, \mathrm e}^+ {\mathrm e}^- $ collider collected almost 700 pb-1 at centre-of-mass energies above the Z0 mass pole and up to 208 GeV. Those data were used to...

Measurement of the forward-backward asymmetries of $e^+e^- \rightarrow Z \rightarrow b\overline{b}$ and $e^+e^- \rightarrow Z \rightarrow c\overline{c}$ using prompt leptons (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The forward-backward asymmetries of the processes $e^+e^- \rightarrow Z \rightarrow b \overline{b}$ and $e^+e^- \rightarrow Z \rightarrow c \overline{c}$ were measured from a sample of hadronic...

Search for single top production via FCNC at LEP at $\sqrt{s}$ = 189-208 GeV (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A search for single top production ( e+e− ! t¯c ) via Flavour Changing Neutral Currents (FCNC) was performed using the data taken by the DELPHI detector at LEP2. The data analysed have been...

Searches for invisibly decaying Higgs bosons with the DELPHI detector at LEP (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Searches for H Z production with the Higgs boson decaying into an invisible final state were performed using the data collected by the DELPHI experiment at centre-of-mass energies between 188 GeV and...

Final results from DELPHI on the searches for SM and MSSM neutral Higgs bosons (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

These final results from DELPHI searches for the Standard Model (SM) Higgs boson, together with benchmark scans of the Minimal Supersymmetric Standard Model (MSSM) neutral Higgs bosons, used data...

b-tagging in DELPHI at LEP (2004)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, T., Alderweireld, T., ...

The standard method used for tagging b-hadrons in the DELPHI experiment at the CERN LEP Collider is discussed in detail. The main ingredient of b-tagging is the impact parameters of tracks, which...

Search for $B_{s}^{0}_\overline{B_{s}^{0}}$ oscillations in DELPHI using high-$p_{t}$ leptons (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Oscillations in the B0_s - anti-B0_s system were studied in events selected from about 4.3 million hadronic Z^0 decays registered by DELPHI between 1992 and 2000. This paper presents updates of two...

Measurement of the $\Lambda^0_b$ decay form factor (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The form factor of Λ0 b baryons is estimated using 3.46×106 hadronic Z decays collected by the DELPHI experiment between 1992 and 1995. Charmed Λ+c baryons fully reconstructed in the...

Search for SUSY in the AMSB scenario with the DELPHI detector (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The DELPHI experiment at the LEP $ {\, \mathrm e}^+ {\mathrm e}^- $ collider collected almost 700 pb-1 at centre-of-mass energies above the Z0 mass pole and up to 208 GeV. Those data were used to...

Measurement of the forward-backward asymmetries of $e^+e^- \rightarrow Z \rightarrow b\overline{b}$ and $e^+e^- \rightarrow Z \rightarrow c\overline{c}$ using prompt leptons (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The forward-backward asymmetries of the processes $e^+e^- \rightarrow Z \rightarrow b \overline{b}$ and $e^+e^- \rightarrow Z \rightarrow c \overline{c}$ were measured from a sample of hadronic...

Search for single top production via FCNC at LEP at $\sqrt{s}$ = 189-208 GeV (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A search for single top production ( e+e− ! t¯c ) via Flavour Changing Neutral Currents (FCNC) was performed using the data taken by the DELPHI detector at LEP2. The data analysed have been...

Determination of the e(+)e(-)→gamma gamma(gamma) cross-section at LEP 2 (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A test of the benchmark QED process e(+) e(-) →gammagamma(gamma) is reported, using the data collected with the DELPHI detector at LEP 2. The data analysed were recorded at centre-of-mass energies...

The measurement of alpha(8) from event shapes with the DELPHI detector at the highest LEP energies (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Hadronic event shape distributions are determined from data in e(+)e(-) collisions between 183 and 207 GeV. From these the strong coupling alpha(s) is extracted in O(alpha(s)(2)), NLLA and matched...

Precise measurement of the tau lifetime (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The tau lepton lifetime has been measured with the e(+) e(-) → tau(+) tau(-) events collected by the DELPHI detector at LEP in the years 1991 - 1995. Three different methods have been exploited,...

Search for charged Higgs bosons at LEP in general two Higgs doublet models (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A search for pair-produced charged Higgs bosons was performed in the data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189 GeV to 209 GeV. Five different final states,...

Search for single top production via FCNC at LEP at root s=189- 208 GeV (2004)

Abdallah, J., Abreu, R., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A search for single top production (e(+)e(-) → t (c) over bar) via flavour changing neutral currents (FCNC) was performed using the data taken by the DELPHI detector at LEP2. The data analyzed have...

b-tagging in DELPHI at LEP (2004)

Abdallah, J., Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, T., ...

The standard method used for tagging b-hadrons in the DELPHI experiment at the CERN LEP Collider is discussed in detail. The main ingredient of b-tagging is the impact parameters of tracks, which...

Final results from DELPHI on the searches for SM and MSSM neutral Higgs bosons (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

These final results from DELPHI searches for the Standard Model (SM) Higgs boson, together with benchmark scans of the Minimal Supersymmetric Standard Model (MSSM) neutral Higgs bosons, used data...

Searches for invisibly decaying Higgs bosons with the DELPHI detector at LEP (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Searches for HZ production with the Higgs boson decaying into an invisible final state were performed using the data collected by the DELPHI experiment at centre-of-mass energies between 188 GeV and...

Search for SUSY in the AMSB scenario with the DELPHI detector (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The DELPHI experiment at the LEP e (+) e(-) collider collected almost 700 pb(-1) at centre-of-mass energies above the Z(0) mass pole and up to 208 GeV. Those data were used to search for SUSY in the...

Measurement of vertical bar Vcb vertical bar using the semileptonic decay (B)d(0))over-bar → Dstar+l(-)(nu)over-barl (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Data from Z decays in DELPHI have been searched for [(B- d(o))over bar] → Dstar+ l(-) (ν) over bar (l) with the Dstar+ decaying to D(0)pi(+) and D-0 → K(-)pi(+), K(-)pi(+)pi(+)pi(- ) or...

Search for supersymmetric particles assuming R-parity non- conservation in e(+)e(-) collisions at root s=192 to 208 GeV (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Searches for pair-production of supersymmetric particles under the assumption of non-conservation of R-parity with a dominant LL (E) over bar or (U) over bar(D) over bar(D) over bar term have been...

Measurement of the forward-backward asymmetries of e(+)e(-)→ Z → b(b)over-bar and e(+)e(-)→ Z → c(c)over-bar using prompt leptons (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The forward-backward asymmetries of the processes e(+) e(-) → Z → b (b) over bar and e(+)e(-) → Z → c (c) over bar were measured from a sample of hadronic Z decays collected by the DELPHI...

A precise measurement of the B+, B-0 and mean b-hadron lifetime with the DELPHI detector at LEP I (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Final results from the DELPHI Collaboration on the lifetime of B+ and B-0 mesons and the mean b-hadron lifetime, are presented using the data collected at the Z(0) peak in 1994 and 1995. Elaborate,...

Measurement of the Lambda(0)(b) decay form factor (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The form factor of A(o)(b) baryons is estimated using 3.46 x 10(6) hadronic Z decays collected by the DELPM experiment between 1992 and 1995. Charmed A(c)(+) baryons fully reconstructed in the...

Low-temperature tracking detectors (2004)

Niinikoski, T.O., Abreu, M., Anbinderis, P., Anbinderis, T., D'Ambrosio, N., De Boer, W., ...

RD39 collaboration develops new detector techniques for particle trackers, which have to withstand fluences up to 10(16) cm(-2) of high-energy particles. The work focuses on the optimization of...

Measurement of the W-pair production cross-section and W branching ratios in e+ e - collisions at root s=161-209 GeV (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

These final results on e+ e - W+ W- production cross-section measurements at LEP2 use data collected by the DELPHI detector at centre-of-mass energies up to 209 GeV. Measurements of total...

Search for B-s(0)-(B-s(0))over-bar oscillations in DELPHI using high-p(t) leptons (2004)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Oscillations in the B-s(0)- [(B-s(0))over bar] system were studied in events selected from about 4.3 million hadronic Z(0) decays registered by DELPHI between 1992 and 2000. This paper presents...

Search for resonant nu production at square root s= 183 to 208 GeV (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Searches for resonant nu production in e/sup +/e/sup -/ collisions under the assumption that R-parity is not conserved and that the dominant R-parity violating coupling is lambda /sub 121/or lambda...

Searches for supersymmetric particles in e$^+$e$^-$ collisions up to 208 GeV and interpretation of the results within the MSSM (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

DELPHI data collected at centre-of-mass energies up to 208 GeV have been analysed to search for charginos, neutralinos and sfermions in the framework of the Minimal Supersymmetric Standard Model...

The $\eta_c$(2980) formation in two-photon collisions at LEP energies (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

eta_c(2980) production in gamma-gamma interactions has been detected via its decays into K0_s K+/- pi-/+, K+ K- K+ K- and K+ K- pi+ pi- in the data taken with the DELPHI detector at LEP1 and LEP2...

A measurement of the branching fractions of the b-quarks into charged and neutral b-hadrons (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The production fractions of charged and neutral b-hadrons in b-quark events from Z0 decays have been measured with the DELPHI detector at LEP. An algorithm has been developed, based on a neural...

ZZ production in $e^+e^-$ interactions at $\sqrt{s}$ = 183-209 GeV (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Measurements of on-shell ZZ production are described, using data from the DELPHI experiment at LEP in e+e collisions at centre-of-mass energies between 183 and 209 GeV, corresponding to an integrated...

Measurement of inclusive $f_{1}$(1285) and $f_{1}$(1420) production in Z decays with the DELPHI detector (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

DELPHI results are presented on the inclusive production of two (K Kbar pi)^0 states in the mass region 1.2-1.6 GeV/c^2 in hadronic Z decays at LEP I. The measured masses (widths) are 1274+-6 MeV/c^2...

Study of inclusive J/psi production in two-photon collisions at LEP II with the DELPHI detector (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Inclusive J/psi production in photon-photon collisions has been observed at LEP II beam energies. A clear signal from the reaction gamma gamma -> J/psi+X is seen. The number of observed N(J/psi ->...

Search for $\mbox{B}^0_s-\overline{\mbox{B}^0_s}$ oscillations and a measurement of $\mbox{B}^0_d-\overline{\mbox{B}^0_d}$ oscillations using events with an inclusively reconstructed vertex (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Neutral B meson oscillations in the $\mbox{B}^0_s-\overline{\mbox{B}^0 _s}$ and $\mbox{B}^0_d-\overline{\mbox{B}^0_d}$ systems were studied using a sample of about 4.0 million hadronic Z decays...

Search for supersymmetric particles in light gravitino scenarios and sleptons NLSP (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A search for sleptons, neutralinos, charginos, sgoldstinos and heavy stable charged sleptons in the context of scenarios where the lightest su\-per\-sym\-me\-tric particle is the gravitino, is...

Search for an LSP gluino at LEP with the DELPHI detector (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

In some supersymmetric models, the gluino (\glui) is predicted to be light and stable. In that case, it would hadronize to form R-hadrons. In these models, the missing energy signature of the...

Search for Doubly Charged Higgs Bosons at LEP2 (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A search for pair-produced doubly charged Higgs bosons has been performed using the data collected by the DELPHI detector at LEP at centre-of-mass energies between 189 and 209 GeV. No excess is...

The development of diamond tracking detectors for the LHC (2003)

Adam, W., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., Borchi, E., ...

Chemical vapor deposition diamond has been discussed extensively as an alternate sensor material for use very close to the interaction region of the LHC where extreme radiation conditions exist....

Status ofthe R&D activity on diamond particle detectors (2003)

Adam, W., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., ...

Chemical Vapor Deposited (CVD) polycrystalline diamond has been proposed as a radiation-hard alternative to silicon in the extreme radiation levels occurring close to the interaction region ofthe...

New results on diamond pixel sensors using ATLAS frontend electronics (2003)

Adam, W., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., Borchi, E., ...

Diamond is a promising sensor material for future collider experiments due to its radiation hardness. Diamond pixel sensors have been bump bonded to an ATLAS pixel readout chip using PbSn solder...

A measurement of the branching fractions of the b-quarks into charged and neutral b-hadrons (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The production fractions of charged and neutral b-hadrons in b-quark events from Z0 decays have been measured with the DELPHI detector at LEP. An algorithm has been developed, based on a neural...

Searches for supersymmetric particles in e$^+$e$^-$ collisions up to 208 GeV and interpretation of the results within the MSSM (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

DELPHI data collected at centre-of-mass energies up to 208 GeV have been analysed to search for charginos, neutralinos and sfermions in the framework of the Minimal Supersymmetric Standard Model...

The $\eta_c$(2980) formation in two-photon collisions at LEP energies (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

eta_c(2980) production in gamma-gamma interactions has been detected via its decays into K0_s K+/- pi-/+, K+ K- K+ K- and K+ K- pi+ pi- in the data taken with the DELPHI detector at LEP1 and LEP2...

ZZ production in $e^+e^-$ interactions at $\sqrt{s}$ = 183-209 GeV (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Measurements of on-shell ZZ production are described, using data from the DELPHI experiment at LEP in e+e collisions at centre-of-mass energies between 183 and 209 GeV, corresponding to an integrated...

Measurement of inclusive $f_{1}$(1285) and $f_{1}$(1420) production in Z decays with the DELPHI detector (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

DELPHI results are presented on the inclusive production of two (K Kbar pi)^0 states in the mass region 1.2-1.6 GeV/c^2 in hadronic Z decays at LEP I. The measured masses (widths) are 1274+-6 MeV/c^2...

Study of inclusive J/psi production in two-photon collisions at LEP II with the DELPHI detector (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Inclusive J/psi production in photon-photon collisions has been observed at LEP II beam energies. A clear signal from the reaction gamma gamma -> J/psi+X is seen. The number of observed N(J/psi ->...

Search for $\mbox{B}^0_s-\overline{\mbox{B}^0_s}$ oscillations and a measurement of $\mbox{B}^0_d-\overline{\mbox{B}^0_d}$ oscillations using events with an inclusively reconstructed vertex (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Neutral B meson oscillations in the $\mbox{B}^0_s-\overline{\mbox{B}^0 _s}$ and $\mbox{B}^0_d-\overline{\mbox{B}^0_d}$ systems were studied using a sample of about 4.0 million hadronic Z decays...

Search for supersymmetric particles in light gravitino scenarios and sleptons NLSP (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A search for sleptons, neutralinos, charginos, sgoldstinos and heavy stable charged sleptons in the context of scenarios where the lightest su\-per\-sym\-me\-tric particle is the gravitino, is...

Search for an LSP gluino at LEP with the DELPHI detector (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

In some supersymmetric models, the gluino (\glui) is predicted to be light and stable. In that case, it would hadronize to form R-hadrons. In these models, the missing energy signature of the...

Search for Doubly Charged Higgs Bosons at LEP2 (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A search for pair-produced doubly charged Higgs bosons has been performed using the data collected by the DELPHI detector at LEP at centre-of-mass energies between 189 and 209 GeV. No excess is...

A measurement of the branching fractions of the b-quarks into charged and neutral b-hadrons (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The production fractions of charged and neutral b-hadrons in b-quark events from Z0 decays have been measured with the DELPHI detector at LEP. An algorithm has been developed, based on a neural...

Searches for supersymmetric particles in e$^+$e$^-$ collisions up to 208 GeV and interpretation of the results within the MSSM (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

DELPHI data collected at centre-of-mass energies up to 208 GeV have been analysed to search for charginos, neutralinos and sfermions in the framework of the Minimal Supersymmetric Standard Model...

The $\eta_c$(2980) formation in two-photon collisions at LEP energies (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

eta_c(2980) production in gamma-gamma interactions has been detected via its decays into K0_s K+/- pi-/+, K+ K- K+ K- and K+ K- pi+ pi- in the data taken with the DELPHI detector at LEP1 and LEP2...

ZZ production in $e^+e^-$ interactions at $\sqrt{s}$ = 183-209 GeV (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Measurements of on-shell ZZ production are described, using data from the DELPHI experiment at LEP in e+e collisions at centre-of-mass energies between 183 and 209 GeV, corresponding to an integrated...

Measurement of inclusive $f_{1}$(1285) and $f_{1}$(1420) production in Z decays with the DELPHI detector (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

DELPHI results are presented on the inclusive production of two (K Kbar pi)^0 states in the mass region 1.2-1.6 GeV/c^2 in hadronic Z decays at LEP I. The measured masses (widths) are 1274+-6 MeV/c^2...

Study of inclusive J/psi production in two-photon collisions at LEP II with the DELPHI detector (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Inclusive J/psi production in photon-photon collisions has been observed at LEP II beam energies. A clear signal from the reaction gamma gamma -> J/psi+X is seen. The number of observed N(J/psi ->...

Search for $\mbox{B}^0_s-\overline{\mbox{B}^0_s}$ oscillations and a measurement of $\mbox{B}^0_d-\overline{\mbox{B}^0_d}$ oscillations using events with an inclusively reconstructed vertex (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Neutral B meson oscillations in the $\mbox{B}^0_s-\overline{\mbox{B}^0 _s}$ and $\mbox{B}^0_d-\overline{\mbox{B}^0_d}$ systems were studied using a sample of about 4.0 million hadronic Z decays...

Search for supersymmetric particles in light gravitino scenarios and sleptons NLSP (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A search for sleptons, neutralinos, charginos, sgoldstinos and heavy stable charged sleptons in the context of scenarios where the lightest su\-per\-sym\-me\-tric particle is the gravitino, is...

Search for an LSP gluino at LEP with the DELPHI detector (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

In some supersymmetric models, the gluino (\glui) is predicted to be light and stable. In that case, it would hadronize to form R-hadrons. In these models, the missing energy signature of the...

Search for Doubly Charged Higgs Bosons at LEP2 (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A search for pair-produced doubly charged Higgs bosons has been performed using the data collected by the DELPHI detector at LEP at centre-of-mass energies between 189 and 209 GeV. No excess is...

Measurement of the branching fractions of the b-quark into charged and neutral b-hadrons (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The production fractions of charged and neutral b-hadrons in b- quark events from Z(0) decays have been measured with the DELPHI detector at LEP. An algorithm has been developed, based on a neural...

A study of the energy evolution of event shape distributions and their means with the DELPHI detector at LEP (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Infrared and collinear safe event shape distributions and their mean values are determined in e(+)e(-) collisions at centre-of- mass energies between 45 and 202GeV. A phenomenological analysis based...

Inclusive b decays to wrong sign charmed mesons (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

The production of wrong sign charmed mesons b → (D) over bar X-(s), D-(s) = (D-0, D+, D-s), is studied using the data collected by the DELPHI experiment in the years 1994 and 1995. Charmed mesons...

Measurement of inclusive f(1) (1285) and f(1) (1420) production in Z decays with the DELPHI detector (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

DELPHI results are presented on the inclusive production of two (K(K) over bar π)(0) states in the mass region 1.2-1.6 GeV/c(2) in hadronic Z decays at LEP I. The measured masses (widths) are 1274...

Measurement of the e+e-→ W+W- gamma cross-section and limits on anomalous quartic gauge couplings with DELPHI (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

W(+)W(-)gamma production at LEP2 is studied using data collected with the DELPHI detector at centre-of-mass energies between 189 GeV and 209 GeV, corresponding to an integrated luminosity of about...

Search for an LSP gluino at LEP with the DELPHI detector (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

In some supersymmetric models, the gluino ((g) over tilde) is predicted to be light and stable. In that case, it would hadronize to form R-hadrons. In these models, the missing energy signature of...

Search for B-s(0)-(B-s(0))over-bar oscillations and a measurement of B-d(0)-(B-d(0))over-bar oscillations using events with an inclusively reconstructed vertex (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Neutral B meson oscillations in the B-s(0) - [(B-s(0))over bar], and B-d(0) - [(B-d(0))over bar] systems were studied using a sample of about 4.0 million hadronic Z decays recorded by the DELPHI...

Search for doubly charged Higgs bosons at LEP2 (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A search for pair-produced doubly charged Higgs bosons has been performed using the data collected by the DELPHI detector at LEP at centre-of-mass energies between 189 and 209 GeV. No excess is...

Search for supersymmetric particles in light gravitino scenarios and sleptons NLSP (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A search for sleptons, neutralinos, charginos, sgoldstinos and heavy stable charged sleptons in the context of scenarios where the lightest supersymmetric particle is the gravitino, is presented....

Searches for supersymmetric particles in e(+)e(-) collisions up to 208 GeV and interpretation of the results within the MSSM (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

DELPHI data collected at centre-of-mass energies up to 208 GeV have been analysed to search for charginos, neutralinos and sfermions in the framework of the Minimal Supersymmetric Standard Model...

Study of inclusive J/psi production in two-photon collisions at LEP II with the DELPHI detector (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Inclusive J/psi production in photon-photon collisions has been observed at LEP II beam energies. A clear signal from the reaction gammagamma → J/psi + X is seen. The number of observed N(J/psi →...

The eta(c)(2980) formation in two-photon collisions at LEP energies (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

eta(c)(2980) production in gammagamma interactions has been detected via its decays into K(s)(0)K(-/+)pi(-/+), K+K-K+K- and K(+)K(-)pi(+)pi(-) in the data taken with the DELPHI detector at LEP1 and...

ZZ production in e(+) e(-) interactions at root s=183-209 GeV (2003)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Measurements of on-shell ZZ production are described, using data from the DELPHI experiment at LEP in e(+)e(-) collisions at centre-of-mass energies between 183 and 209 GeV, corresponding to an...

Recent progress in low-temperature silicon detectors (2003)

Abreu, M., D'Ambrosio, N., Bell, W., Berglund, P., Borchi, E., De Boer, W., ...

The CERN RD39 Collaboration studies the possibility to extend the detector lifetime in a hostile radiation environment by operating them at low temperatures. The outstanding illustration is the...

The effect of charge collection recovery in silicon p-n junction detectors irradiated by different particles (2003)

Verbitskaya, E., Abreu, M., Anbinderis, P., Anbinderis, T., D'Ambrosio, N., De Boer, W., ...

The recovery of the charge collection efficiency (CCE) at low temperatures, the so-called "Lazarus effect", was studied in Si detectors irradiated by fast reactor neutrons, by protons of medium and...

A CVD Diamond Beam Telescope for Charged Particle Tracking (2002)

Adam, W, Berdermann, E, Bergonzo, P, De Boer, W, Bogani, F, Borchi, E, ...

CVD diamond is a radiation hard sensor material which may be used for charged particle tracking near the interaction region in experiments at high luminosity colliders. The goal of the work described...

Rapidity-Alignment and $P_T$ Compensation of Particle Pairs in Hadronic $Z^0$ Decays (2002)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Observation is made of rapidity-alignment of \KK and \pp pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to antiquark. The \KK and...

Searches for neutral Higgs bosons in $e^+ e^-$ collisions from $\sqrt{s}$ = 191.6 to 201.7 GeV (2002)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Neutral Higgs bosons of the Standard Model ({\sc SM}) and the Minimal Supersymmetric Standard Model ({\sc MSSM}) were searched for in the data collected in 1999 by the DELPHI experiment at...

Search for Charged Higgs Bosons in $e^+ e^-$ Collisions at $\sqrt{s}$=189-202 GeV (2002)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for pair-produced charged Higgs bosons was performed in the high energy data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189~GeV to 202~GeV\@. The three...

A CVD diamond beam telescope for charged particle tracking (2002)

Adam, W., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., Borchi, E., ...

Chemical vapor deposition (CVD) diamond is a radiation-hard sensor material that may be used for charged particle tracking near the interaction region in experiments at high-luminosity colliders. The...

A CVD Diamond Beam Telescope for Charged Particle Tracking (2002)

Adam, W, Berdermann, E, Bergonzo, P, De Boer, W, Bogani, F, Borchi, E, ...

CVD diamond is a radiation hard sensor material which may be used for charged particle tracking near the interaction region in experiments at high luminosity colliders. The goal of the work described...

Rapidity-Alignment and $P_T$ Compensation of Particle Pairs in Hadronic $Z^0$ Decays (2002)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Observation is made of rapidity-alignment of \KK and \pp pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to antiquark. The \KK and...

Searches for neutral Higgs bosons in $e^+ e^-$ collisions from $\sqrt{s}$ = 191.6 to 201.7 GeV (2002)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Neutral Higgs bosons of the Standard Model ({\sc SM}) and the Minimal Supersymmetric Standard Model ({\sc MSSM}) were searched for in the data collected in 1999 by the DELPHI experiment at...

Search for Charged Higgs Bosons in $e^+ e^-$ Collisions at $\sqrt{s}$=189-202 GeV (2002)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for pair-produced charged Higgs bosons was performed in the high energy data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189~GeV to 202~GeV\@. The three...

A CVD Diamond Beam Telescope for Charged Particle Tracking (2002)

Adam, W, Berdermann, E, Bergonzo, P, De Boer, W, Bogani, F, Borchi, E, ...

CVD diamond is a radiation hard sensor material which may be used for charged particle tracking near the interaction region in experiments at high luminosity colliders. The goal of the work described...

Rapidity-Alignment and $P_T$ Compensation of Particle Pairs in Hadronic $Z^0$ Decays (2002)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Observation is made of rapidity-alignment of \KK and \pp pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to antiquark. The \KK and...

Searches for neutral Higgs bosons in $e^+ e^-$ collisions from $\sqrt{s}$ = 191.6 to 201.7 GeV (2002)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Neutral Higgs bosons of the Standard Model ({\sc SM}) and the Minimal Supersymmetric Standard Model ({\sc MSSM}) were searched for in the data collected in 1999 by the DELPHI experiment at...

Search for Charged Higgs Bosons in $e^+ e^-$ Collisions at $\sqrt{s}$=189-202 GeV (2002)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for pair-produced charged Higgs bosons was performed in the high energy data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189~GeV to 202~GeV\@. The three...

Rapidity-alignment and p(T) compensation of particle pairs in hadronic Z(0) decays (2002)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Observation is made of rapidity-alignment of K+K- and (p) over barp pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to antiquark....

Search for charged Higgs bosons in e(+)e(-) collisions root s=189-202 GeV (2002)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

A search for pair-produced charged Higgs bosons was performed in the high energy data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189 GeV to 202 GeV. The three...

Searches for neutral Higgs bosons in e(+)e(-), collisions from root s=191.6 to 201.7 GeV (2002)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Neutral Higgs bosons of the Standard Model (SM) and the Minimal Supersymmetric Standard Model (MSSM) were searched for in the data collected in 1999 by the DELPHI experiment at centre-of- mass...

Radiation hard cryogenic silicon detectors (2002)

Casagrande, L., Abreu, M.C., Bell, W.H., Berglund, P., De Boer, W., Borchi, E., ...

It has been recently observed that heavily irradiated silicon detectors, no longer functional at room temperature, "resuscitate" when operated at temperatures below 130 K. This is often referred to...

Radiation hardness of cryogenic silicon detectors (2002)

Niinikoski, T.O., Abreu, M., Bell, W., Berglund, P., De Boer, W., Borchi, E., ...

We shall review test results which show that silicon detectors can withstand at 130 K temperature a fluence of 2 x 10(15)cm(- 2) of 1 MeV neutrons, which is about 10 times higher than the fluence...

Silicon detectors irradiated "in situ" at cryogenic temperatures (2002)

Ruggiero, G., Abreu, M., Bell, W., Berglund, P., De Boer, W., Borer, K., ...

Though several studies have proved the radiation tolerance of silicon detectors at cryogenic temperatures, following room temperature irradiation, no previous investigation has studied the behaviour...

Optimization of electric field distribution by free carrier injection in silicon detectors operated at low temperatures (2002)

Verbitskaya, E., Abreu, M., Bartsch, V., Bell, W., Berglund, P., Bol, J., ...

We present a study of the modeling of the electric field distribution, which is controlled by injection and trapping of nonequilibrium carriers, in Si detectors irradiated by high neutron fluences....

Nitrosomonas europaea-like bacteria detected as the dominant beta-subclass Proteobacteria ammonia oxidisers in reference and limed acid forest soils (2002)

Carnol, Monique, Kowalchuk, GA, De Boer, W

Net nitrification in intact soil cores and the community of ammonia-oxidising bacteria were studied in acid Norway spruce (Picea abies (L.) Karst) and sessile oak (Quercus petraea (Matt. Lieb.))...

Qualifizierung der Strahlungstoleranz der CMS-Siliziumstreifensensoren. I. (2002)

Furgeri, A., De Boer, W., Dierlamm, A., Grigoriev, E., Hartmann, F., Müller, Th., ...

66.Physikertagung gemeinsam mit der Frühjahrstagung der DPG, Leipzig, 18.-22.März 2002

Qualifizierung der Strahlungstoleranz der CMS-Siliziumstreifensensoren. II. (2002)

Dierlamm, A., De Boer, W., Furgeri, A., Grigoriev, E., Hartmann, F., Müller, Th., ...

66.Physikertagung gemeinsam mit der Frühjahrstagung der DPG, Leipzig, 18.-22.März 2002

Bestimmung der Lorentzwinkel in Silizium-Detektoren. (2002)

Hauler, F., De Boer, W., Bartsch, V., Bol, J., Dierlamm, A., Grigoriev, E., ...

66.Physikertagung gemeinsam mit der Frühjahrstagung der DPG, Leipzig, 18.-22.März 2002

Der Milestone200 des CMS-Spurdetektors. (2002)

Piasecki, Ch., Barvich, T., Blüm, P., De Boer, W., Dirkes, G., Fahrer, M., ...

66.Physikertagung gemeinsam mit der Frühjahrstagung der DPG, Leipzig, 18.-22.März 2002

Beammonitor aus Diamantdetektoren. (2002)

Boll, J., De Boer, W., Dierlamm, A., Doucet, M., Ghodbane, N., Grigoriev, E., ...

66.Physikertagung gemeinsam mit der Frühjahrstagung der DPG, Leipzig, 18.-22.März 2002

Kommerzielle CMOS Sensoren in Medizin und Hochenergie Physik. (2002)

Jungermann, L., De Boer, W., Bol, J., Dierlamm, A., Hauler, F., Grigoriev, E.

66.Physikertagung gemeinsam mit der Frühjahrstagung der DPG, Leipzig, 18.-22.März 2002

Lorentz angle measurements in silicon detectors. (2002)

Bartsch, V., De Boer, W., Bol, J., Dierlamm, A., Grigoriev, E., Hauler, F., ...

Nuclear Instruments and Methods in Physics Research A, 478(2002) S.330-32

Measurements with a CMOS pixel sensor in magnetic fields. (2002)

De Boer, W., Bartsch, V., Bol, J., Dierlamm, A., Grigoriev, E., Hauler, F., ...

Proc.of the 3rd Internat.Workshop on Radiation Imaging Detectors, Orosei, I, September 23-27, 2001

The b->sgamma rate and Higgs boson limits in the Constrained Minimal Supersymmetric Model (2001)

De Boer, W., Huber, M., Gladyshev, A. V., Kazakov, D. I.

New NLO b->sgamma calculations have become available using resummed radiative corrections. Using these calculations we perform a global fit of the supergravity inspired constrained minimal...

Search for technicolor with DELPHI (2001)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Technicolor represents a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches for technicolor particles $\rho_T$ and $\pi_T$ have been performed in the data collected...

A Measurement of the Tau Topological Branching Ratios (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been performed, giving...

Measurement of the Mass and Width of the W Boson in e$^+$e$^-$ Collisions at $\sqrt(s)$ = 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average...

Measurement of V$_{cb}$ from the decay process $\bar{B^0}$ - D$^{*+} \ell^- \bar{\nu}$ (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+}...

Search for neutralino pair production at $\sqrt{s}$ = 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...

Search for a fermiophobic Higgs at LEP 2 (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublets Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...

Study of Dimuon Production in Photon-Photon Collisions and Measurement of QED Photon Structure Functions at LEP (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Muon pair production in the process $e^+e^-\to e^+e^-\mu^+\mu^-$ is studied using the data taken at LEP1 ($\sqrt{s}\simeq m_Z$) with the DELPHI detector during the years 1992-1995. The corresponding...

Update of the search for supersymmetric particles in scenarios with Gravitino LSP and Sleptons NLSP (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric...

Search for Spontaneous R-parity violation at $\sqrt{s}$ = 183 GeV and 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Searches for spontaneous $R$-parity violating signals at $\sqrt{s}=183$\,GeV and \mbox{$\sqrt{s}=189$\,GeV} have been performed using 1997 and 1998 DELPHI data, under the assumption of $R$-parity...

Measurement of trilinear gauge boson couplings $WWV (V\equiv \gamma,Z)$ in $e^+ e^-$ collisions at 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Measurements of the trilinear gauge boson couplings $WW\gamma$ and $WWZ$ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189~GeV and combined with DELPHI data at...

Search for R-parity violation with a $\bar{U} \bar{D} \bar{D}$ coupling at $\sqrt{s}$ = 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Searches for pair production of gauginos and squarks in $e^{+} e^{-}$ collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158...

Measurement of the ZZ cross-section in $e^+ e^-$ interactions at 183-189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Measurements of on-shell $ZZ$ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies $\sqrt s$ = 182.6 GeV and 188.6 GeV respectively. Results obtained...

Update of the search for supersymmetric particles in scenarios with Gravitino LSP and Sleptons NLSP (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric...

Measurement of the Mass and Width of the W Boson in e$^+$e$^-$ Collisions at $\sqrt(s)$ = 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average...

A Measurement of the Tau Topological Branching Ratios (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been performed, giving...

Search for technicolor with DELPHI (2001)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Technicolor represents a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches for technicolor particles $\rho_T$ and $\pi_T$ have been performed in the data collected...

Measurement of V$_{cb}$ from the decay process $\bar{B^0}$ - D$^{*+} \ell^- \bar{\nu}$ (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+}...

Search for neutralino pair production at $\sqrt{s}$ = 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...

Search for a fermiophobic Higgs at LEP 2 (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublets Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...

Study of Dimuon Production in Photon-Photon Collisions and Measurement of QED Photon Structure Functions at LEP (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Muon pair production in the process $e^+e^-\to e^+e^-\mu^+\mu^-$ is studied using the data taken at LEP1 ($\sqrt{s}\simeq m_Z$) with the DELPHI detector during the years 1992-1995. The corresponding...

Search for Spontaneous R-parity violation at $\sqrt{s}$ = 183 GeV and 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Searches for spontaneous $R$-parity violating signals at $\sqrt{s}=183$\,GeV and \mbox{$\sqrt{s}=189$\,GeV} have been performed using 1997 and 1998 DELPHI data, under the assumption of $R$-parity...

Measurement of trilinear gauge boson couplings $WWV (V\equiv \gamma,Z)$ in $e^+ e^-$ collisions at 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Measurements of the trilinear gauge boson couplings $WW\gamma$ and $WWZ$ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189~GeV and combined with DELPHI data at...

Search for R-parity violation with a $\bar{U} \bar{D} \bar{D}$ coupling at $\sqrt{s}$ = 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Searches for pair production of gauginos and squarks in $e^{+} e^{-}$ collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158...

Measurement of the ZZ cross-section in $e^+ e^-$ interactions at 183-189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Measurements of on-shell $ZZ$ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies $\sqrt s$ = 182.6 GeV and 188.6 GeV respectively. Results obtained...

Update of the search for supersymmetric particles in scenarios with Gravitino LSP and Sleptons NLSP (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric...

Measurement of the Mass and Width of the W Boson in e$^+$e$^-$ Collisions at $\sqrt(s)$ = 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average...

A Measurement of the Tau Topological Branching Ratios (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been performed, giving...

Search for technicolor with DELPHI (2001)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Technicolor represents a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches for technicolor particles $\rho_T$ and $\pi_T$ have been performed in the data collected...

Measurement of V$_{cb}$ from the decay process $\bar{B^0}$ - D$^{*+} \ell^- \bar{\nu}$ (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+}...

Search for neutralino pair production at $\sqrt{s}$ = 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...

Search for a fermiophobic Higgs at LEP 2 (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublets Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...

Study of Dimuon Production in Photon-Photon Collisions and Measurement of QED Photon Structure Functions at LEP (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Muon pair production in the process $e^+e^-\to e^+e^-\mu^+\mu^-$ is studied using the data taken at LEP1 ($\sqrt{s}\simeq m_Z$) with the DELPHI detector during the years 1992-1995. The corresponding...

Search for Spontaneous R-parity violation at $\sqrt{s}$ = 183 GeV and 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Searches for spontaneous $R$-parity violating signals at $\sqrt{s}=183$\,GeV and \mbox{$\sqrt{s}=189$\,GeV} have been performed using 1997 and 1998 DELPHI data, under the assumption of $R$-parity...

Measurement of trilinear gauge boson couplings $WWV (V\equiv \gamma,Z)$ in $e^+ e^-$ collisions at 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Measurements of the trilinear gauge boson couplings $WW\gamma$ and $WWZ$ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189~GeV and combined with DELPHI data at...

Search for R-parity violation with a $\bar{U} \bar{D} \bar{D}$ coupling at $\sqrt{s}$ = 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Searches for pair production of gauginos and squarks in $e^{+} e^{-}$ collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158...

Measurement of the ZZ cross-section in $e^+ e^-$ interactions at 183-189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Measurements of on-shell $ZZ$ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies $\sqrt s$ = 182.6 GeV and 188.6 GeV respectively. Results obtained...

Search for technicolor with DELPHI (2001)

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...

Technicolor represents, a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches fur technicolor particles rho (T) and pi (T) have been performed in the, data collected...

Measurement of the Tau topological branching ratios (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive T branching ratios for decay modes containing one, three, or five charged particles have been performed, giving the...

Measurement of the mass and width of the W boson in e(+)e(-) collisions at root s=189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A measurement of the FV mass and width has been performed by the DELPHI Collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb(-1) and an average...

Measurement of the semileptonic b branching fractions and average b mixing parameter in Z decays (2001)

Abreu, P., Adam, W., Adyc, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The semileptonic branching fractions for primary and cascade b decays BR(b → l(-)), BR(b → c → l(+)) and BR(b → (c) over bar → l(-) were measured in hadronic Z decays collected by the...

Measurement of the ZZ cross-section in e(+)e(-) interactions at 183-189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Measurements of on-shell ZZ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies roots = 182.6 GeV and 188.6 GeV, respectively. Results obtained in...

Measurement of trilinear gauge boson couplings WWV, (V Z,gamma) in e(+)e(-) collisions at 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Measurements of the trilinear gauge boson couplings WW gamma and WWZ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189 GeV and combined with DELPHI data at 183...

Measurement of V-cb from the decay process (B)over-bar(0)→ D(*+)l(-)(nu)over-bar (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A new precise measurement of \V-cb\ and of the branching ratio BR([(Bover bar](0)→ D(+*)l(-)[([nu])over bar](l)) has been performed using a sample of about 5000 semileptonic decays (B) over bar (0)...

Search for a fermiophobic Higgs at LEP 2 (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublers Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...

Search for neutralino pair production at root s = 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

A search for pair-production of neutralinos at a LEP centre-of- mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...

Search for R-parity violation with a (U)over-bar(D)over- bar(D)over-bar coupling at root s approximate to 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Searches for pair production of gauginos and squarks in e(+)e(- ) collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158 pb(-1)...

Search for sleptons in e(+)e(-) collisions at root s=183 to 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Data taken by the DELPHI experiment at centre-of-mass energies of 183 GeV and 189 GeV with a total integrated luminosity of 212 pb(-1) have been used to search for the supersymmetric partners of the...

Search for spontaneous R-parity violation at root s=183 GeV and 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Searches for spontaneous R-parity-violating signals at roots = 183 GeV and roots = 189 GeV have been performed using the 1997 and 1998 DELPHI data, under the assumption of R-parity breaking in the...

Search for the Standard Model Higgs boson at LEP in the year 2000 (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Searches for the Standard Model Higgs boson have been performed in the data collected by the. DELPHI experiment at LEP in the year 2000 at centre-of-mass energies between 200 and 209 GeV...

Single intermediate vector boson production in e(+)e(-) collisions at root s=183 and 189 GeV (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The cross sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52 pb(-1) and 154 pb(-1) collected by the experiment at...

Study of dimuon production in photon-photon collisions and measurement of QED photon structure functions at LEP (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Muon pair production in the process e(+)e(-) → e(+)e(-)mu (+)mu (-) is studied using the data taken at LEP1 (roots similar or equal to m(Z)) with the DELPHI detector during the years 1992-1995. The...

Update of the search for supersymmetric particles in scenarios with gravitino LSP and sleptons NLSP (2001)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric...

Charge collection efficiency of an irradiated cryogenic double- p silicon detector (2001)

Borer, K., Janos, S., Li, Z., Dezillie, B., Da Via, C., Granata, V., ...

We present results on the measurement of the charge collection efficiency of a p(+) /n/p(+) silicon detector irradiated to 1 x 10(15) n/cm(2), Operated in the temperature range between 80 and 200 K....

Review on the development of cryogenic silicon detectors (2001)

Casagrande, L., Abreu, M.C., Bell, W.H., Berglund, P., De Boer, W., Borer, K., ...

In this paper, we report on the performance of heavily irradiated silicon detectors operated at cryogenic temperatures. The results discussed here show that cryogenic operation indeed represents a...

Cryogenic technology for tracking detectors (2001)

Granata, V., Da Via, C., Watts, S., Borer, K., Janos, S., Pretzl, K., ...

A low-mass cryogenic cooling technique for silicon sensor modules has been developed in the framework of the RD39 Collaboration at CERN. A prototype low-mass beam tracker cryostat has been designed,...

Developments for radiation hard silicon detectors by defect engineering - results by the CERN RD48 (ROSE) Collaboration (2001)

Lindstrom, G., Ahmed, M., Albergo, S., Allport, P., Anderson, D., Andricek, L., ...

This report summarises the final results obtained by the RD48 collaboration. The emphasis is on the more practical aspects directly relevant for LHC applications. The report is based on the...

Radiation hard silicon detectors - developments by the RD48 (ROSE)collaboration (2001)

Lindstrom, G., Ahmed, M., Albergo, S., Allport, P., Anderson, D., Andricek, L., ...

The RD48 (ROSE) collaboration has succeeded to develop radiation hard silicon detectors. capable to withstand the harsh hadron fluences in the tracking areas of LHC experiments. In order to reach...

Effect of heating ramp rates on transient enhanced diffusion in ion-implemented silicon (2001)

Mannino, G., Stolk, P.A., Cowern, N.E.B., De Boer, W., Dirks, A.G., Roozeboom, F., ...

Boron marker-layer structures have been used to analyze the heating ramp-rate dependence of transient enhanced dopant diffusion (TED) during rapid thermal annealing of Si implantation damage. The...

Study of $B^0_s - \overline{B^0_s}$ oscillations and $B^0_s$ lifetimes using hadronic decays of $B^0_s$ mesons (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Oscillations of $\mbox{B}^0_{\mathrm{s}}$ mesons have been studied in samples selected from about 3.5 million hadronic $\Zz$ decays detected by DELPHI betwee. One analysis uses events in the...

Charged and Identified Particles in the Hadronic Decay of W Bosons and in $e^{+} e^{-} \to q\overline{q}$ from 130 to 200 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at...

Search for supersymmetric partners of top and bottom quarks at $\sqrt{s}$ = 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...

Upper Limit for the Decay $B^{-} \to \tau^{-}\overline{\nu}_{\tau}$ and Measurement of the $b \to \tau\overline{\nu}_{\tau}X$ Branching Ratio (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Using the data sample of hadronic $Z^0$ decays collected by the DELPHI experiment in the 1992-1995 LEP1 period, the leptonic decay of the charged $B$ mesons (\btauex) has been studied. The analysis...

Search for the sgoldstino at $\sqrt{s}$ from 189 to 202 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S$\gamma$ followed by S decay into two gluons or into two photons was studied at 189 -...

A search for invisible Higgs bosons produced in $e^{+} e^{-}$ interactions up to $\sqrt{s}$ = 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Searches for {\mbox{$ {\mathrm H} {\mathrm Z} $}} production d with the Higgs boson decaying into an invisible final state have been performedd the data collected by the DELPHI experimentd up to the...

Searches for Neutral Higgs Bosons in $e^+ e^-$ Collisions around $\sqrt{s}$ = 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Searches for neutral Higgs bosons in the Standard Model and the MSSM havebeen performed using data collected by the DELPHI experiment at acentre-of-mass energy of 188.7 GeV, corresponding toan...

Identified Charged Particles and Resonances in Quark and Gluon Jets (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A sample of 2.2 million hadronic \z decays, selected fythe {\sc Delphi} detector at {\sc Lep} during 1994-199nimprovedmeasurement of inclusive distributions of \pie, \kp anrantiparticles in gluon and...

Determination of the $e^+ e^- \to \gamma \gamma(\gamma)$ cross-section at centre-of-mass energies ranging from 189 GeV to 202 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A test of the QED process \eeintogg(\fot) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest ener\-gies achieved at LEP, reaching 202 GeV in the...

Photon Events with Missing Energy at $\sqrt{s}$= 183 to 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The production of single photons has been studiedin the reaction e+e- --> gamma+ invisible particles at centre-of-mass energies of 183~GeV and 189~GeV.A previously published analysis of events with...

Measurement of the $B^0_s$ Lifetime and Study of $B^0_s - \overline{B^0_s}$ Oscillations using $D_{s}l$ Events (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Lifetime and oscillations of $\Bs$ mesons have been studied in eventswith a large transverse momentum lepton and a $\Ds$ of opposite electric charge the same hemisphere, selected from about 3.6...

Rapidity-rank structure of $p\overline{p}$ pairs in hadronic $Z^0$ decays (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The rapidity-rank structure of \ppb pairs is used to analyze the mechanism of baryon production in hadronic \zz decay. The relative occurrence of the rapidity-ordered configuration \pmpb, where $M$...

Limits on the masses of supersymmetric particles at $\sqrt{s}$=189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...

Cross-Sections and Leptonic Forward-Backward Asymmetries from the $Z^0$Running of LEP (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...

During 1993 and 1995 LEP was run at 3 energies near the Z$^0$ peak in order to give improved measurements of the mass and width of the resonance. During 1994, LEP operated only at the Z$^0$peak. In...

A Study of the Lorentz Structure in Tau Decays (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

This paper describes a measurement of the Michel parameters, $\eta$, $\rho$, $\xi$, $\xi \delta$, and the average $\nu_{\tau}$helicity, $h_{\nu_{\tau}}$, in $\tau$ lepton decays together withthe...

Search for SUSY with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$=189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Searches for pair production of supersymmetric particlesunder the assumption that $R$--parity is not conserved are presented,based on data recorded by the DELPHI detector in 1998from e$^{+}$e$^{-}$...

Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The data collected by DELPHI in 1998 at the centre-of-mass energy of 189~GeVhave been used to update the search for charginos nearly mass-degenerate withthe lightest supersymmetric particle, which is...

Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

An analysis of the data collected in 1997 and 1998 with the DELPHIdetector at $e^+e^-$ collision energies close to 183 and 189GeV was performed in order to extract the hadronic and leptonic...

A Precise Measurement of the $\tau$ Polarisation at LEP-1 (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The $\tau$ polarisation has been studied with the $\eett$ data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the $\Z$ resonance firstly through the exclusive decay channels...

Search for charginos in $e^+ e^-$ interactions at $\sqrt{s}$ = 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

An update of the searches for charginos and gravitinodon a data sample corresponding to the 158 pb$^{-1}$ rIdetector in 1998, at a centre-of-mass energy of 18asignal was found. The lower mass limits...

W pair production cross-section and W branching fractions in $e^+ e^-$ interactions at 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The cross-section for the process $e^+e^-\rightarrow W^+W^-$has been measured with the data sample collected by DELPHIat an average centre-of-mass energy of 189~GeV andcorresponding to an integrated...

Search for supersymmetry with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$ = 183 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Searches for pair production of supersymmetric particles in e$^{+}$e$^{-}$ collisions at centre-of-mass energy of 183~GeV have been performed on DELPHI data under the assumption that $R$-parity is...

Determination of $\mid V_{ub} \mid/\mid V_{cb} \mid$ with DELPHI at LEP (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The ratio of the CKM quark-mixing matrix elements |V_{ub}|/|V_{cb}|has been measured using B hadron semileptonic decays.The analysis is based on a novel technique, recently proposed by theoreticians,...

Search for Heavy Stable and Long-Lived Particles in $e^+ e^-$ Collisions at $\sqrt{s}$=189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...

Inclusive $\Sigma^-$ and $\Lambda(1520)$ production in hadronic Z decays (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Production of $\sm$ and $\lft$ in hadronic Z decays has been measuredusing the \delphi detector at \lep. The $\sm$ is directly reconstructed as acharged track in the \delphi microvertex detector and...

Measurements of the Z partial decay width into $c\overline{c}$ and multiplicity of charm quarks per b decay (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

The partial decay width $R_c$ of the $Z$ into $c\bar{c}$ quark pair and the number of charm quarks $n_c$ per $b$ decay are measured with the DELPHI detector at \mbox{LEP 1}. Particle identification...

Two-dimensional analysis of the Bose-Einstein correlations in $e^+ e^-$ annihilation at the Z$^0$ peak (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The study of the directional dependence of two-particle correlations in the hadronic decays of the $Z^0$ boson is performed using the data collected by the DELPHI experiment in the 1992--1995 running...

Limits on the masses of supersymmetric particles at $\sqrt{s}$=189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...

Determination of the $e^+ e^- \to \gamma \gamma(\gamma)$ cross-section at centre-of-mass energies ranging from 189 GeV to 202 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A test of the QED process \eeintogg(\fot) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest ener\-gies achieved at LEP, reaching 202 GeV in the...

Two-dimensional analysis of the Bose-Einstein correlations in $e^+ e^-$ annihilation at the Z$^0$ peak (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The study of the directional dependence of two-particle correlations in the hadronic decays of the $Z^0$ boson is performed using the data collected by the DELPHI experiment in the 1992--1995 running...

Inclusive $\Sigma^-$ and $\Lambda(1520)$ production in hadronic Z decays (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Production of $\sm$ and $\lft$ in hadronic Z decays has been measuredusing the \delphi detector at \lep. The $\sm$ is directly reconstructed as acharged track in the \delphi microvertex detector and...

W pair production cross-section and W branching fractions in $e^+ e^-$ interactions at 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The cross-section for the process $e^+e^-\rightarrow W^+W^-$has been measured with the data sample collected by DELPHIat an average centre-of-mass energy of 189~GeV andcorresponding to an integrated...

Search for charginos in $e^+ e^-$ interactions at $\sqrt{s}$ = 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

An update of the searches for charginos and gravitinodon a data sample corresponding to the 158 pb$^{-1}$ rIdetector in 1998, at a centre-of-mass energy of 18asignal was found. The lower mass limits...

Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

An analysis of the data collected in 1997 and 1998 with the DELPHIdetector at $e^+e^-$ collision energies close to 183 and 189GeV was performed in order to extract the hadronic and leptonic...

Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The data collected by DELPHI in 1998 at the centre-of-mass energy of 189~GeVhave been used to update the search for charginos nearly mass-degenerate withthe lightest supersymmetric particle, which is...

Search for SUSY with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$=189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Searches for pair production of supersymmetric particlesunder the assumption that $R$--parity is not conserved are presented,based on data recorded by the DELPHI detector in 1998from e$^{+}$e$^{-}$...

A Study of the Lorentz Structure in Tau Decays (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

This paper describes a measurement of the Michel parameters, $\eta$, $\rho$, $\xi$, $\xi \delta$, and the average $\nu_{\tau}$helicity, $h_{\nu_{\tau}}$, in $\tau$ lepton decays together withthe...

Rapidity-rank structure of $p\overline{p}$ pairs in hadronic $Z^0$ decays (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The rapidity-rank structure of \ppb pairs is used to analyze the mechanism of baryon production in hadronic \zz decay. The relative occurrence of the rapidity-ordered configuration \pmpb, where $M$...

Measurement of the $B^0_s$ Lifetime and Study of $B^0_s - \overline{B^0_s}$ Oscillations using $D_{s}l$ Events (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Lifetime and oscillations of $\Bs$ mesons have been studied in eventswith a large transverse momentum lepton and a $\Ds$ of opposite electric charge the same hemisphere, selected from about 3.6...

Photon Events with Missing Energy at $\sqrt{s}$= 183 to 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The production of single photons has been studiedin the reaction e+e- --> gamma+ invisible particles at centre-of-mass energies of 183~GeV and 189~GeV.A previously published analysis of events with...

Identified Charged Particles and Resonances in Quark and Gluon Jets (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A sample of 2.2 million hadronic \z decays, selected fythe {\sc Delphi} detector at {\sc Lep} during 1994-199nimprovedmeasurement of inclusive distributions of \pie, \kp anrantiparticles in gluon and...

Searches for Neutral Higgs Bosons in $e^+ e^-$ Collisions around $\sqrt{s}$ = 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Searches for neutral Higgs bosons in the Standard Model and the MSSM havebeen performed using data collected by the DELPHI experiment at acentre-of-mass energy of 188.7 GeV, corresponding toan...

Search for the sgoldstino at $\sqrt{s}$ from 189 to 202 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S$\gamma$ followed by S decay into two gluons or into two photons was studied at 189 -...

Search for supersymmetric partners of top and bottom quarks at $\sqrt{s}$ = 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...

Cross-Sections and Leptonic Forward-Backward Asymmetries from the $Z^0$Running of LEP (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...

During 1993 and 1995 LEP was run at 3 energies near the Z$^0$ peak in order to give improved measurements of the mass and width of the resonance. During 1994, LEP operated only at the Z$^0$peak. In...

Study of $B^0_s - \overline{B^0_s}$ oscillations and $B^0_s$ lifetimes using hadronic decays of $B^0_s$ mesons (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Oscillations of $\mbox{B}^0_{\mathrm{s}}$ mesons have been studied in samples selected from about 3.5 million hadronic $\Zz$ decays detected by DELPHI betwee. One analysis uses events in the...

Charged and Identified Particles in the Hadronic Decay of W Bosons and in $e^{+} e^{-} \to q\overline{q}$ from 130 to 200 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at...

Upper Limit for the Decay $B^{-} \to \tau^{-}\overline{\nu}_{\tau}$ and Measurement of the $b \to \tau\overline{\nu}_{\tau}X$ Branching Ratio (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Using the data sample of hadronic $Z^0$ decays collected by the DELPHI experiment in the 1992-1995 LEP1 period, the leptonic decay of the charged $B$ mesons (\btauex) has been studied. The analysis...

A search for invisible Higgs bosons produced in $e^{+} e^{-}$ interactions up to $\sqrt{s}$ = 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Searches for {\mbox{$ {\mathrm H} {\mathrm Z} $}} production d with the Higgs boson decaying into an invisible final state have been performedd the data collected by the DELPHI experimentd up to the...

A Precise Measurement of the $\tau$ Polarisation at LEP-1 (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The $\tau$ polarisation has been studied with the $\eett$ data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the $\Z$ resonance firstly through the exclusive decay channels...

Search for supersymmetry with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$ = 183 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Searches for pair production of supersymmetric particles in e$^{+}$e$^{-}$ collisions at centre-of-mass energy of 183~GeV have been performed on DELPHI data under the assumption that $R$-parity is...

Determination of $\mid V_{ub} \mid/\mid V_{cb} \mid$ with DELPHI at LEP (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The ratio of the CKM quark-mixing matrix elements |V_{ub}|/|V_{cb}|has been measured using B hadron semileptonic decays.The analysis is based on a novel technique, recently proposed by theoreticians,...

Search for Heavy Stable and Long-Lived Particles in $e^+ e^-$ Collisions at $\sqrt{s}$=189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...

Measurements of the Z partial decay width into $c\overline{c}$ and multiplicity of charm quarks per b decay (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

The partial decay width $R_c$ of the $Z$ into $c\bar{c}$ quark pair and the number of charm quarks $n_c$ per $b$ decay are measured with the DELPHI detector at \mbox{LEP 1}. Particle identification...

Limits on the masses of supersymmetric particles at $\sqrt{s}$=189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...

Determination of the $e^+ e^- \to \gamma \gamma(\gamma)$ cross-section at centre-of-mass energies ranging from 189 GeV to 202 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A test of the QED process \eeintogg(\fot) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest ener\-gies achieved at LEP, reaching 202 GeV in the...

Two-dimensional analysis of the Bose-Einstein correlations in $e^+ e^-$ annihilation at the Z$^0$ peak (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The study of the directional dependence of two-particle correlations in the hadronic decays of the $Z^0$ boson is performed using the data collected by the DELPHI experiment in the 1992--1995 running...

Inclusive $\Sigma^-$ and $\Lambda(1520)$ production in hadronic Z decays (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Production of $\sm$ and $\lft$ in hadronic Z decays has been measuredusing the \delphi detector at \lep. The $\sm$ is directly reconstructed as acharged track in the \delphi microvertex detector and...

W pair production cross-section and W branching fractions in $e^+ e^-$ interactions at 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The cross-section for the process $e^+e^-\rightarrow W^+W^-$has been measured with the data sample collected by DELPHIat an average centre-of-mass energy of 189~GeV andcorresponding to an integrated...

Search for charginos in $e^+ e^-$ interactions at $\sqrt{s}$ = 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

An update of the searches for charginos and gravitinodon a data sample corresponding to the 158 pb$^{-1}$ rIdetector in 1998, at a centre-of-mass energy of 18asignal was found. The lower mass limits...

Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

An analysis of the data collected in 1997 and 1998 with the DELPHIdetector at $e^+e^-$ collision energies close to 183 and 189GeV was performed in order to extract the hadronic and leptonic...

Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The data collected by DELPHI in 1998 at the centre-of-mass energy of 189~GeVhave been used to update the search for charginos nearly mass-degenerate withthe lightest supersymmetric particle, which is...

Search for SUSY with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$=189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Searches for pair production of supersymmetric particlesunder the assumption that $R$--parity is not conserved are presented,based on data recorded by the DELPHI detector in 1998from e$^{+}$e$^{-}$...

A Study of the Lorentz Structure in Tau Decays (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

This paper describes a measurement of the Michel parameters, $\eta$, $\rho$, $\xi$, $\xi \delta$, and the average $\nu_{\tau}$helicity, $h_{\nu_{\tau}}$, in $\tau$ lepton decays together withthe...

Rapidity-rank structure of $p\overline{p}$ pairs in hadronic $Z^0$ decays (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The rapidity-rank structure of \ppb pairs is used to analyze the mechanism of baryon production in hadronic \zz decay. The relative occurrence of the rapidity-ordered configuration \pmpb, where $M$...

Measurement of the $B^0_s$ Lifetime and Study of $B^0_s - \overline{B^0_s}$ Oscillations using $D_{s}l$ Events (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Lifetime and oscillations of $\Bs$ mesons have been studied in eventswith a large transverse momentum lepton and a $\Ds$ of opposite electric charge the same hemisphere, selected from about 3.6...

Photon Events with Missing Energy at $\sqrt{s}$= 183 to 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The production of single photons has been studiedin the reaction e+e- --> gamma+ invisible particles at centre-of-mass energies of 183~GeV and 189~GeV.A previously published analysis of events with...

Identified Charged Particles and Resonances in Quark and Gluon Jets (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A sample of 2.2 million hadronic \z decays, selected fythe {\sc Delphi} detector at {\sc Lep} during 1994-199nimprovedmeasurement of inclusive distributions of \pie, \kp anrantiparticles in gluon and...

Searches for Neutral Higgs Bosons in $e^+ e^-$ Collisions around $\sqrt{s}$ = 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Searches for neutral Higgs bosons in the Standard Model and the MSSM havebeen performed using data collected by the DELPHI experiment at acentre-of-mass energy of 188.7 GeV, corresponding toan...

Search for the sgoldstino at $\sqrt{s}$ from 189 to 202 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S$\gamma$ followed by S decay into two gluons or into two photons was studied at 189 -...

Search for supersymmetric partners of top and bottom quarks at $\sqrt{s}$ = 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...

Cross-Sections and Leptonic Forward-Backward Asymmetries from the $Z^0$Running of LEP (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...

During 1993 and 1995 LEP was run at 3 energies near the Z$^0$ peak in order to give improved measurements of the mass and width of the resonance. During 1994, LEP operated only at the Z$^0$peak. In...

Study of $B^0_s - \overline{B^0_s}$ oscillations and $B^0_s$ lifetimes using hadronic decays of $B^0_s$ mesons (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Oscillations of $\mbox{B}^0_{\mathrm{s}}$ mesons have been studied in samples selected from about 3.5 million hadronic $\Zz$ decays detected by DELPHI betwee. One analysis uses events in the...

Charged and Identified Particles in the Hadronic Decay of W Bosons and in $e^{+} e^{-} \to q\overline{q}$ from 130 to 200 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at...

Upper Limit for the Decay $B^{-} \to \tau^{-}\overline{\nu}_{\tau}$ and Measurement of the $b \to \tau\overline{\nu}_{\tau}X$ Branching Ratio (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Using the data sample of hadronic $Z^0$ decays collected by the DELPHI experiment in the 1992-1995 LEP1 period, the leptonic decay of the charged $B$ mesons (\btauex) has been studied. The analysis...

A search for invisible Higgs bosons produced in $e^{+} e^{-}$ interactions up to $\sqrt{s}$ = 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Searches for {\mbox{$ {\mathrm H} {\mathrm Z} $}} production d with the Higgs boson decaying into an invisible final state have been performedd the data collected by the DELPHI experimentd up to the...

A Precise Measurement of the $\tau$ Polarisation at LEP-1 (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The $\tau$ polarisation has been studied with the $\eett$ data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the $\Z$ resonance firstly through the exclusive decay channels...

Search for supersymmetry with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$ = 183 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Searches for pair production of supersymmetric particles in e$^{+}$e$^{-}$ collisions at centre-of-mass energy of 183~GeV have been performed on DELPHI data under the assumption that $R$-parity is...

Determination of $\mid V_{ub} \mid/\mid V_{cb} \mid$ with DELPHI at LEP (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The ratio of the CKM quark-mixing matrix elements |V_{ub}|/|V_{cb}|has been measured using B hadron semileptonic decays.The analysis is based on a novel technique, recently proposed by theoreticians,...

Search for Heavy Stable and Long-Lived Particles in $e^+ e^-$ Collisions at $\sqrt{s}$=189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...

Measurements of the Z partial decay width into $c\overline{c}$ and multiplicity of charm quarks per b decay (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

The partial decay width $R_c$ of the $Z$ into $c\bar{c}$ quark pair and the number of charm quarks $n_c$ per $b$ decay are measured with the DELPHI detector at \mbox{LEP 1}. Particle identification...

Photon events with missing energy at root s=183 to 189 GeV (2000)

Abreau, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The production of single photons has been studied in the reaction e(+)e(-) → gamma +invisible particles at centre-of- mass energies of 183 GeV and 189 GeV. A previously published analysis of events...

Two-dimensional analysis of the Bose-Einstein correlations in e(+)e(-) annihilation at the Z(0) peak (2000)

Abreau, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The study of the directional dependence of two-particle correlations in the hadronic decays of the Z(0) boson is performed using the data collected by the DELPHI experiment in the 1992-1995 running...

Study of the Lorentz structure in tau decays (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

This paper describes a measurement of the Michel parameters, eta, rho, xi, xi delta, and the average v(tau) helicity, h(nu tau), in tau lepton decays together with the first measurement of the tensor...

Charged and identified particles in the hadronic decay of W bosons and in e(+)e(-) → q(q)over-bar from 130 to 200 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Inclusive distributions of charged particles in hadronic W decays are experimentally investigated using the statistics collected by the DELPHI experiment at LEP during 1997, 1998 and 1999, at...

Consistent measurements of alpha(s) from precise oriented event shape distributions (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

An updated analysis using about 1.5 million events recorded at root s = M-Z with the DELPHI detector in 1994 is presented. Eighteen infrared and collinear safe event shape observables are measured as...

Determination of P(c → D*(+)) and BR(c → l(+)) at LEP 1 (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The probability P(c → D*(+)) that a charm quark fragments into a D*+ meson and the c → l(+) semileptonic branching fraction were measured in Z(0) decay into c (c) over bar events. From the...

Determination of the e(+)e(-)→gamma gamma(gamma) cross-section at centre-of-mass energies ranging from 189 GeV to 202 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A test of the QED process e(+)e(-) → gamma gamma gt (*) over bar *(gamma) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest energies achieved at...

Determination of vertical bar V-ub vertical bar/vertical bar V- cb vertical bar with DELPHI at LEP (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The ratio of the CKM quark-mixing matrix elements \V-ub\/\V-cb\ has been measured using B hadron semileptonic decays. The analysis uses the reconstructed mass M-X of the secondary hadronic system...

Hadronization properties of b quarks compared to light quarks in e(+)e(-)→ q(q)over-bar from 183 to 200 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The DELPHI detector at LEP has collected 54 pb(-1) of data at a centre-of-mass energy around 183 GeV during 1997, 158 pb(-1) around 189 GeV during 1998, and 187 pb(-1) between 192 and 200 GeV during...

Identified charged particles in quark and gluon jets (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A sample of 2.2 million hadronic Z decays, selected from the data recorded by the DELPHI detector at LEP during 1994-1995 was used for an improved measurement of inclusive distributions of pi (+), K+...

Inclusive Sigma(-) and Lambda(1520) production in hadronic Z decays (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Production of Sigma(-) and Lambda(1520) in hadronic Z decays has been measured using the DELPHI detector at LEP. The Sigma(- ) is directly reconstructed as a charged track in the DELPHI microvertex...

Lambdab polarization in Z0 decays at LEP (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The longitudinal polarization of the Lambda(b) baryon is measured at the LEP e(+)e(-) collider by DELPHI. It is determined from the charged lepton and neutrino energy spectra in 249 +/- 19 Lambda(b)...

Limits on the masses of supersymmetric particles at root s=189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...

Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

An analysis of the data collected in 1997 and 1998 with the DELPHI detector at e(+)e(-) collision energies close to 183 and 189 GeV was performed in order to extract the hadronic and leptonic...

Measurement of the (B)over-bar → D-(*)pi l(nu)over-bar(l) branching fraction (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

A study of b semileptonic decays into D, D pi(+/-) and D*pi(+/- ) final states is presented. The D-0, D+ and D*(+) mesons are exclusively reconstructed in Z decay data recorded from 1992 to 1995 in...

Measurement of the gluon fragmentation function and a comparison of the scaling violation in gluon and quark jets (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The fragmentation functions of quarks and gluons are measured in Various three-jet topologies in Z decays from the full data set collected with the DELPHI detector at the Z resonance between 1992 and...

Measurement of the strange quark forward-backward asymmetry around the Z(0) peak (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Abrecht, Z., Alderweireld, T., ...

A precise measurement of the strange quark forward-backward asymmetry used 3.2 M multihadronic events around the Z(0) peak collected by the DELPHI experiment from 1992 to 1995. The ring imaging...

Measurements of the Z partial decay width into c(c)over-bar and multiplicity of charm quarks per b decay (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The partial decay width R-c of the Z into c (c) over bar quark pair and the number of charm quarks n(c) per b decay are measured with the DELPHI detector at LEP 1. Particle identification provides...

Rapidity-rank structure of p(p)over-bar pairs in hadronic Z(0) decays (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The rapidity-rank structure of pa pairs is used to analyze the mechanism of baryon production in hadronic Z(0) decay. The relative occurrence of the rapidity-ordered configuration p M p, where M is a...

Search for heavy stable and long-lived particles in e(+)e(-) collisions at root s=189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...

Search for supersymmetric partners of top and bottom quarks at root s=189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...

Search for supersymmetric particles in scenarios with a gravitino LSP and stau NLSP (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Sleptons, neutralinos and charginos were searched for in the context of scenarios where the lightest supersymmetric particle is the gravitino. It was assumed that the stau is the next-to- lightest...

Search for supersymmetry with R-parity violating LL(E)over-bar couplings at root s=183 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Searches for pair production of supersymmetric particles in e(+)e(-) collisions at centre-of-mass energy of 183 GeV have been performed on DELPHI data under the assumption that R- parity is not...

Search for SUSY with R-parity violating LL(E)over-bar couplings at root s=189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Searches for pair production of supersymmetric particles under the assumption that R-parity is not conserved are presented, based on data recorded by the DELPHI detector in 1998 from e(+)e(-)...

Search for the sgoldstino at root s from 189 to 202 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S gamma followed by S decay into two gluons or into two photons was studied at 189-202...

Study of B-s(0)-(B-s(0))over-bar oscillations and B-s(0) lifetimes using hadronic decays of B-s(0) mesons (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

Oscillations of B-s(0) mesons have been studied in samples selected from about 3.5 million hadronic Z decays detected by DELPHI between 1992 and 1995. One analysis uses events in the exclusive decay...

Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The data collected by DELPHI in 1998 at the centre-of-mass energy of 189 GeV have been used to update the search for charginos nearly mass-degenerate with the lightest supersymmetric particle, which...

W pair production cross-section and W branching fractions in e(+)e(-) interactions at 189 GeV (2000)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The cross-section for the process e(+)e(-) → W+ W- has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 189 GeV and corresponding to an integrated...

Charge collection efficiency of irradiated silicon detector operated at cryogenic temperatures (2000)

Borer, K., Janos, S., Palmieri, V.G., Dezillie, B., Li, Z., Collins, P., ...

The charge collection efficiency (CCE) of heavily irradiated silicon diode detectors was investigated at temperatures between 77 and 200 K. The CCE was found to depend on the radiation dose, bias...

Cryogenic operation of silicon detectors (2000)

Collins, P., Barnett, I.B.M., Bartalini, P., Bell, W., Berglund, P., De Boer, W., ...

This paper reports on measurements at cryogenic temperatures of a silicon microstrip detector irradiated with 24 GeV protons to a fluence of 3.5 x 10(14) p/cm(2) and of a p-n junction diode detector...

Irradiated silicon detectors operated at cryogenic temperatures: the Lazarus effect (2000)

Granata, V., Bell, W.H., Berglund, P., De Boer, W., Borchi, E., Borer, K., ...

An increasing interest in the behaviour of silicon detectors at cryogenic temperatures has been awakened by the discovery of the so-called Lazarus effect, namely the recovery of charge collection...

Radiation hard position-sensitive cryogenic silicon detectors: the Lazarus effect (2000)

Palmieri, V.G., Abreu, M.C., Bell, W.H., Berglund, P., De Boer, W., Borchi, E., ...

The discovery of the so-called Lazarus effect, namely the recovery of the charge collection efficiency (CCE) of irradiated silicon detectors by means of cryogenic cooling has entailed an increasing...

Betrieb von Si-Detektoren bei kryogenen Temperaturen. (2000)

Jungermann, L., De Boer, W., Bol, J., Hauler, F., Heising, S.

64.Physikertagung gemeinsam mit der Frühjahrstagung DPG, Dresden, 20.-24. März 2000

Messung des Lorentzwinkels in Silizium von Raumtemperatur bis 77 K. (2000)

Heising, S., De Boer, W., Bol, J., Hauler, F., Jungermann, L., Schneider, T.

64.Physikertagung gemeinsam mit der Frühjahrstagung DPG, Dresden, 20.-24. März 2000

Measurement and Interpretation of Fermion-Pair Production at LEP energies from 130 to 172 GeV (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The data collected with the DELPHI detector at centre-of-mass energies between 130 and 172~$\GeV$, during LEP operation in 1995 and 1996, have been used to determine the hadronic and leptonic...

Search for chargino pair production in scenarios with gravitino LSP and stau NLSP at $\sqrt{s} \sim$ 183 GeV at LEP (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Promptly decaying lightest charginos were searched for in the context of scenarios with gravitino LSP. It was assumed that the stau is the next to lightest supersymmetric particle (NLSP). Data...

Measurement of the mass of the W boson using direct reconstruction at $\sqrt{s}$ = 183 GeV (1999)

Abreu, P., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., ...

From data corresponding to an integrated luminosity of $53.5 \, {\mathrm {pb}}^{-1}$ taken during the $183 \, \GeV$ run in 1997, DELPHI has measured the W mass from direct reconstruction of $\WW...

Measurement of the rate of $b\overline{b} b\overline{b}$ events in hadronic Z decays and the extraction of the gluon splitting into $b\overline{b}$ (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The rate $Z \rightarrow b\overline{b}b\overline{b}$ was measured using about $2 x 10^6$ hadronic decays collected by the DELPHI experiment in 1994 and 1995. Events were forced into 3-jets with...

Measurements of the leptonic branching fractions of the $\tau$ (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Data collected with the DELPHI detector from 1993 to 1995 combined with previous DELPHI results for data from 1991 and 1992 yield the branching fractions $ B({\tau \rightarrow \mbox{\rm e} \nu...

Search for charged Higgs bosons at LEP 2 (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for pair produced charged Higgs bosons has been performed in the high energy data collected by DELPHI at LEP with $\sqrt{s} =$ 161, 172 and 183~GeV. The analysis uses the $\tau \nu \tau...

Multiplicity fluctuations in one- and two-dimensional angular intervals compared with analytic QCD calculations (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Multiplicity fluctuations in rings around the jet axis and in off-axis cones have been measured by the DELPHI collaboration in $e^+e^-$ annihilations into hadrons at LEP energies. The measurements...

W pair production cross-section and W branching fractions in $e^+ e^-$ interactions at 183 GeV (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The cross-section for the process $e^+e^-\rightarrow W^+W^-$ has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 182.65 GeV and corresponding to an...

Energy dependence of event shapes and of $\alpha_s$ at LEP 2 (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Infrared and collinear safe event shape distributions and their mean values are determined using the data taken at ve di erent centre of mass energies above $M_Z$ with the DELPHI detector at LEP....

Search for composite and exotic fermions at LEP 2 (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...

A search for unstable heavy fermions with the DELPHI detector at LEP is reported. Sequential and non-canonical leptons, as well as excited leptons and quarks, are considered. The data analysed...

Measurement of Inclusive $\rho^{0}, f_{0}(980), f_{2}(1270), K^{*0}_{2}(1430)$ and $f^{'}_{2}(1525)$ Production in Z$^0$ Decays (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

DELPHI results are presented on the inclusive production of the neutral mesons$\rho^0$, $f_0(980)$, $f_2(1270)$, K$^{*0}_2(1430)$ and $f^{'}_2(1525)$in hadronic Z$^0$ decays. They are based on about2...

Search for charginos, neutralinos and gravitinos in $e^{+}e^{-}$ interactions at $\sqrt{s}$=183 GeV (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Aldeweireld, T., ...

An update of the searches for charginos and neutralinos is presented, basedon a data sample corresponding to the 53.9 pb$^{-1}$ recorded by the DELPHIdetector in 1997, at a centre-of-mass energy of...

Measurement of the Quark and Gluon Fragmentation Functions in Z$^0$ Hadronic Decays (1999)

Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...

The transverse, longitudinal and asymmetric components of the fragmentation function are measured from the inclusive charged particles produced in $e^+e^-$ collisions at LEP. As in deep inelastic...

Search for pair-produced neutralinos in events with photons and missing energy from $e^+ e^-$ collisions at $\sqrt{s}$ = 130-183 GeV (1999)

Abreu, P., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., Alemany, R., ...

The events with two photons and missing (transverse) energy collected by the DELPHI detector at centre-of-mass energies between 130~GeV and 183~GeV have been studied to search for processes of the...

Measurement of the Quark and Gluon Fragmentation Functions in Z$^0$ Hadronic Decays (1999)

Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...

The transverse, longitudinal and asymmetric components of the fragmentation function are measured from the inclusive charged particles produced in $e^+e^-$ collisions at LEP. As in deep inelastic...

Measurement of Inclusive $\rho^{0}, f_{0}(980), f_{2}(1270), K^{*0}_{2}(1430)$ and $f^{'}_{2}(1525)$ Production in Z$^0$ Decays (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

DELPHI results are presented on the inclusive production of the neutral mesons$\rho^0$, $f_0(980)$, $f_2(1270)$, K$^{*0}_2(1430)$ and $f^{'}_2(1525)$in hadronic Z$^0$ decays. They are based on about2...

Search for composite and exotic fermions at LEP 2 (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...

A search for unstable heavy fermions with the DELPHI detector at LEP is reported. Sequential and non-canonical leptons, as well as excited leptons and quarks, are considered. The data analysed...

Energy dependence of event shapes and of $\alpha_s$ at LEP 2 (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Infrared and collinear safe event shape distributions and their mean values are determined using the data taken at ve di erent centre of mass energies above $M_Z$ with the DELPHI detector at LEP....

Measurements of the leptonic branching fractions of the $\tau$ (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Data collected with the DELPHI detector from 1993 to 1995 combined with previous DELPHI results for data from 1991 and 1992 yield the branching fractions $ B({\tau \rightarrow \mbox{\rm e} \nu...

Measurement and Interpretation of Fermion-Pair Production at LEP energies from 130 to 172 GeV (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The data collected with the DELPHI detector at centre-of-mass energies between 130 and 172~$\GeV$, during LEP operation in 1995 and 1996, have been used to determine the hadronic and leptonic...

Search for pair-produced neutralinos in events with photons and missing energy from $e^+ e^-$ collisions at $\sqrt{s}$ = 130-183 GeV (1999)

Abreu, P., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., Alemany, R., ...

The events with two photons and missing (transverse) energy collected by the DELPHI detector at centre-of-mass energies between 130~GeV and 183~GeV have been studied to search for processes of the...

Search for charginos, neutralinos and gravitinos in $e^{+}e^{-}$ interactions at $\sqrt{s}$=183 GeV (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Aldeweireld, T., ...

An update of the searches for charginos and neutralinos is presented, basedon a data sample corresponding to the 53.9 pb$^{-1}$ recorded by the DELPHIdetector in 1997, at a centre-of-mass energy of...

Measurement of the mass of the W boson using direct reconstruction at $\sqrt{s}$ = 183 GeV (1999)

Abreu, P., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., ...

From data corresponding to an integrated luminosity of $53.5 \, {\mathrm {pb}}^{-1}$ taken during the $183 \, \GeV$ run in 1997, DELPHI has measured the W mass from direct reconstruction of $\WW...

Search for chargino pair production in scenarios with gravitino LSP and stau NLSP at $\sqrt{s} \sim$ 183 GeV at LEP (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Promptly decaying lightest charginos were searched for in the context of scenarios with gravitino LSP. It was assumed that the stau is the next to lightest supersymmetric particle (NLSP). Data...

Measurement of the rate of $b\overline{b} b\overline{b}$ events in hadronic Z decays and the extraction of the gluon splitting into $b\overline{b}$ (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The rate $Z \rightarrow b\overline{b}b\overline{b}$ was measured using about $2 x 10^6$ hadronic decays collected by the DELPHI experiment in 1994 and 1995. Events were forced into 3-jets with...

Search for charged Higgs bosons at LEP 2 (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for pair produced charged Higgs bosons has been performed in the high energy data collected by DELPHI at LEP with $\sqrt{s} =$ 161, 172 and 183~GeV. The analysis uses the $\tau \nu \tau...

Multiplicity fluctuations in one- and two-dimensional angular intervals compared with analytic QCD calculations (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Multiplicity fluctuations in rings around the jet axis and in off-axis cones have been measured by the DELPHI collaboration in $e^+e^-$ annihilations into hadrons at LEP energies. The measurements...

W pair production cross-section and W branching fractions in $e^+ e^-$ interactions at 183 GeV (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The cross-section for the process $e^+e^-\rightarrow W^+W^-$ has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 182.65 GeV and corresponding to an...

Measurement of the Quark and Gluon Fragmentation Functions in Z$^0$ Hadronic Decays (1999)

Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...

The transverse, longitudinal and asymmetric components of the fragmentation function are measured from the inclusive charged particles produced in $e^+e^-$ collisions at LEP. As in deep inelastic...

Measurement of Inclusive $\rho^{0}, f_{0}(980), f_{2}(1270), K^{*0}_{2}(1430)$ and $f^{'}_{2}(1525)$ Production in Z$^0$ Decays (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

DELPHI results are presented on the inclusive production of the neutral mesons$\rho^0$, $f_0(980)$, $f_2(1270)$, K$^{*0}_2(1430)$ and $f^{'}_2(1525)$in hadronic Z$^0$ decays. They are based on about2...

Search for composite and exotic fermions at LEP 2 (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...

A search for unstable heavy fermions with the DELPHI detector at LEP is reported. Sequential and non-canonical leptons, as well as excited leptons and quarks, are considered. The data analysed...

Energy dependence of event shapes and of $\alpha_s$ at LEP 2 (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Infrared and collinear safe event shape distributions and their mean values are determined using the data taken at ve di erent centre of mass energies above $M_Z$ with the DELPHI detector at LEP....

Measurements of the leptonic branching fractions of the $\tau$ (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Data collected with the DELPHI detector from 1993 to 1995 combined with previous DELPHI results for data from 1991 and 1992 yield the branching fractions $ B({\tau \rightarrow \mbox{\rm e} \nu...

Measurement and Interpretation of Fermion-Pair Production at LEP energies from 130 to 172 GeV (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The data collected with the DELPHI detector at centre-of-mass energies between 130 and 172~$\GeV$, during LEP operation in 1995 and 1996, have been used to determine the hadronic and leptonic...

Search for pair-produced neutralinos in events with photons and missing energy from $e^+ e^-$ collisions at $\sqrt{s}$ = 130-183 GeV (1999)

Abreu, P., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., Alemany, R., ...

The events with two photons and missing (transverse) energy collected by the DELPHI detector at centre-of-mass energies between 130~GeV and 183~GeV have been studied to search for processes of the...

Search for charginos, neutralinos and gravitinos in $e^{+}e^{-}$ interactions at $\sqrt{s}$=183 GeV (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Aldeweireld, T., ...

An update of the searches for charginos and neutralinos is presented, basedon a data sample corresponding to the 53.9 pb$^{-1}$ recorded by the DELPHIdetector in 1997, at a centre-of-mass energy of...

Measurement of the mass of the W boson using direct reconstruction at $\sqrt{s}$ = 183 GeV (1999)

Abreu, P., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., ...

From data corresponding to an integrated luminosity of $53.5 \, {\mathrm {pb}}^{-1}$ taken during the $183 \, \GeV$ run in 1997, DELPHI has measured the W mass from direct reconstruction of $\WW...

Search for chargino pair production in scenarios with gravitino LSP and stau NLSP at $\sqrt{s} \sim$ 183 GeV at LEP (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

Promptly decaying lightest charginos were searched for in the context of scenarios with gravitino LSP. It was assumed that the stau is the next to lightest supersymmetric particle (NLSP). Data...

Measurement of the rate of $b\overline{b} b\overline{b}$ events in hadronic Z decays and the extraction of the gluon splitting into $b\overline{b}$ (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...

The rate $Z \rightarrow b\overline{b}b\overline{b}$ was measured using about $2 x 10^6$ hadronic decays collected by the DELPHI experiment in 1994 and 1995. Events were forced into 3-jets with...

Search for charged Higgs bosons at LEP 2 (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

A search for pair produced charged Higgs bosons has been performed in the high energy data collected by DELPHI at LEP with $\sqrt{s} =$ 161, 172 and 183~GeV. The analysis uses the $\tau \nu \tau...

Multiplicity fluctuations in one- and two-dimensional angular intervals compared with analytic QCD calculations (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...

Multiplicity fluctuations in rings around the jet axis and in off-axis cones have been measured by the DELPHI collaboration in $e^+e^-$ annihilations into hadrons at LEP energies. The measurements...

W pair production cross-section and W branching fractions in $e^+ e^-$ interactions at 183 GeV (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The cross-section for the process $e^+e^-\rightarrow W^+W^-$ has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 182.65 GeV and corresponding to an...

Measurement and interpretation of fermion-pair production at LEP energies from 130 to 172 GeV (1999)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...

The data collected with the DELPHI detector at centre-of-mass energies between 130 and 172 GeV, during LEP operation in 1995 and 1996, have been used to determine the hadronic and leptonic...

A Search for $\eta'_c$ Production in Photon-Photon Fusion at LEP (1998)

Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...

A search for the production of the $\eta'_c$ meson, the first radial excitation of the ground state of charmonium $\eta_c$(2980), in the photon-photon fusion reaction at LEP has been performed using...

Two-particle angular correlations in $e^+ e^-$ interactions compared with QCD predictions (1998)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...

Two--particle angular correlations in jet cones have been measured in $e^+e^-$ annihilation into hadrons at LEP energies ($\sqrt{s}=$ 91 and 183~GeV) and are compared with QCD predictions using the...

Search for charginos, neutralinos and gravitinos at LEP (1998)

Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...

An update of the searches for charginos and neutralinos in DELPHI is presented, based mainly on recent data collected at centre-of-mass energies of 161~GeV and 172~GeV. No signal is found. %Except...

Rapidity Correlations in $\Lambda$ Baryon and Proton Production in Hadronic Z$^0$ Decays (1998)

Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...

In an analysis of multihadronic events recorded at LEP by DELPHI in the years 1992 through 1994, charged hadrons are identified using the measurement of their energy loss and their Cherenkov angle....

Charged Particle Multiplicity in $e^+ e^- \rightarrow q \overline{q}$ events at 161 and 172 GeV and from the Decay of the W Boson (1998)

Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...

The data collected by DELPHI in 1996 have been used to measure the average charged particle multiplicities and dispersions in $q\bar{q}$ events at centre-of-mass energies of $\sqrt{s}=161$~GeV and...

Measurement of $\mid V_{cs} \mid$ using W decays at LEP2 (1998)

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...

Decays of $W^{\pm}$ bosons, produced at LEP2, have been used to measure the $|V_{cs}|$ element of the Cabibbo-Kobayashi-Maskawa matrix. Values for $|V_{cs}|$ were extracted both from the measured...

Measurement of the inclusive charmless and double-charm B branching ratios (1998)

Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...

The DELPHI experiment at LEP has measured the inclusive charmless $B$ hadron decay branching ratio, the $B$ branching ratio into two charmed particles, and the total number of charmed particles per...

Search for charged Higgs bosons in $e^+ e^-$ collisions at $\sqrt{s}$ = 172 GeV (1998)

Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...

This paper presents results on charged Higgs boson production, based on LEP data collected at $\sqrt{s} = 172$ GeV, that complement the previous DELPHI results obtained at centre of mass energies up...

Measurement of the $e^+ e^- \to \gamma\gamma (\gamma)$ cross section at the LEP energies (1998)

Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...

The total and the differential cross-sections for the reaction $e^+e^-\rightarrow \gamma\gamma(\gamma)$ have been measured with the DELPHI detector at LEP % with at centre-of-mass energies from 1 30...