Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alemany-Fernandez, R, ...
In a study of the reaction e-e+ -> W-W+ with the DELPHI detector, the probabilities of the two W particles occurring in the joint polarisation states transverse-transverse (TT),...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alemany-Fernandez, R, ...
A study of the inclusive charged hadron production in two-photon collisions is described. The data were collected with the DELPHI detector at LEP II. Results on the inclusive single-particle p_T...
A Study of $b\overline{b}$ Production in $e^+e^-$ Collisions at $\sqrt(s) = 130-207 GeV$ (2009)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alemany-Fernandez, R, ...
Measurements are presented of R_b, the ratio of the b bbar cross-section to the q qbar cross-section in e+e- collisions, and the forward-backward asymmetry A^b_FB at twelve energy points in the range...
Search for one large extra dimension with the DELPHI detector at LEP (2009)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alemany-Fernandez, R, ...
Single photons detected by the DELPHI experiment at LEP2 in the years 1997-2000 are reanalysed to investigate the existence of a single extra dimension in a modified ADD scenario with slightly warped...
Observation of the Muon Inner Bremsstrahlung at LEP1 (2009)
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 < E_gamma
Di-jet production in $\gamma\gamma$ collisions at LEP2 (2009)
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 integrated e+e-...
Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics (2008)
Abat, E., Abbott, B., Abdallah, J., Abdelalim, A. A., Abdesselam, A., ...
A detailed study is presented of the expected performance of the ATLAS detector. The reconstruction of tracks, leptons, photons, missing energy and jets is investigated, together with the performance...
Alignment of the Pixel and SCT Modules for the 2004 ATLAS Combined Test Beam (2008)
Ahmad, A., Andreazza, A., Atkinson, T., Baines, J., Barr, A. J., Beccherle, R., ...
A small set of final prototypes of the ATLAS Inner Detector silicon tracker (Pixel and SCT) were used to take data during the 2004 Combined Test Beam. Data were collected from runs with beams of...
Study of b-quark mass effects in multijet topologies with the DELPHI detector at LEP (2008)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alemany-Fernandez, R, ...
The effect of the heavy b-quark mass on the two, three and four-jet rates is studied using LEP data collected by the DELPHI experiment at the Z peak in 1994 and 1995. The rates of b-quark jets and...
THE ATLAS HIGH LEVEL TRIGGER GROUP ∗ (2008)
S. Armstrong, J. T. Baines, C. P. Bee, M. Biglietti, A. Bogaerts, V. Boisvert, ...
Given the extremely high bunch crossing rate foreseen at the Large Hadron Collider (LHC) and the general-purpose nature of the ATLAS particle physics experiment, after the hardware-based first level...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alemany-Fernandez, R, ...
A measurement of the W boson mass and width has been performed by the DELPHI collaboration using the data collected during the full LEP2 programme (1996-2000). The data sample has an integrated...
Integration of the Trigger and Data Acquisition Systems in ATLAS (2008)
Abolins, M, Adragna, P, Aleksandrov, E, Aleksandrov, I, Amorim, A, Anderson, K, ...
During 2006 and the first half of 2007, the installation, integration and commissioning of trigger and data acquisition (TDAQ) equipment in the ATLAS experimental area have progressed. There have...
Corresponding author. Tel.: 41-22-76-73788; fax.: 41-22-76-73394. (2008)
Mail Address Iztok, I. Ropotar, F. Antinori, D. Barberis, K. H. Becks, ...
Hybrid assemblies of LHC1 read-out chips and 300 #m thick silicon pixel detectors have been tested with a 120 GeV/c pion beam at the CERN SPS. The equivalent noise charge at the input of the...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alemany-Fernandez, R, ...
This paper presents the final interpretation of the results from DELPHI on the searches for Higgs bosons in the Minimal Supersymmetric extension of the Standard Model (MSSM). A few representative...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alemany-Fernandez, R, ...
This paper presents the final interpretation of the results from DELPHI on the searches for Higgs bosons in the Minimal Supersymmetric extension of the Standard Model (MSSM). A few representative...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alemany-Fernandez, R, ...
A determination of the single W Spin Density Matrix (SDM) elements in the reaction e+e- -> W+W- -> l nu q qbar (l=e/mu) is reported at centre-of-mass energies between 189 and 209 GeV. The data sample...
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...
Thin Gap Gas Chambers for the DELPHI Endcaps (2007)
O. Ullal, E. Mongiardini, A. Morelli, P. Morettini, A. Petrolini, G. Piana, ...
Thin Gap Gas Chambers have been proposed for an upgrade of the endcaps of the DELPHI detector at LEP. Two full size chambers have been built and a study of the optimal operating conditions has been...
Measurement of the Tau Lepton Polarisation at LEP2 (2007)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alemany-Fernandez, R, ...
A first measurement of the average polarisation P_tau of tau leptons produced in e+e- annihilation at energies significantly above the Z resonance is presented. The polarisation is determined from...
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.
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
$Z\gamma*$ production in $e^+ e^-$ interactions at $\sqrt{s}$ = 183 - 209 GeV (2007)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alemany-Fernandez, R, ...
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...
Study of Triple-Gauge-Boson Couplings ZZZ, ZZ$\gamma$ and Z$\gamma\gamma$ at LEP (2007)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alemany-Fernandez, R, ...
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...
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
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-Fernandez, R, ...
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...
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-Fernandez, R, ...
A search for the pair production of fourth generation b'-quarks was performed using data taken by the DELPHI detector at LEP-II. The analysed data were collected at centre-of-mass energies ranging...
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
b-tagging in DELPHI at LEP (2006)
Abdallah, J, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, T, ...
Final results from DELPHI on the searches for SM and MSSM Neutral Higgs Bosons (2006)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
ZZ production in $e^{+}e^{-}$ interactions at $\sqrts$=183-209 GeV (2006)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Determination of Afb at the Z pole using inclusive charge reconstruction and lifetime tagging (2006)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Searches for Neutral Higgs Bosons in Extended Models (2006)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
$Zgam^*$ production in $^{+} e^{-}$ interactions at $\sqrt {s} = 183 - 209$ GeV (2006)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Study of Leading Hadrons in Gluon and Quark Fragmentation (2006)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
The study of quark jets in e+e- reactions at LEP has demonstrated that the hadronisation process is reproduced well by the Lund string model. However, our understanding of gluon fragmentation is less...
Study of Triple-Gauge-Boson Couplings ZZZ , ZZgam and Zgamgam at LEP (2006)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Search for excited leptons in $e^{+}e^{-}$ collisions at $\sqrts=189 - 209$ GeV (2006)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Bose-Einstein Correlations in $W^{+}W^{-}$ events at LEP2 (2006)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Search for Leptoquarks and FCNC in $e^{+} e^{-}$ annihilations at $\sqrt{s}$=183 GeV (2006)
Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...
A search for events with one jet and at most one isolated leptonused data taken at LEP-2 by the DELPHI detector.These data were accumulated at a center-of-mass energy of183 GeV and correspond to an...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
\newcommand{\cacf} {\ifmmode{C_A/C_F} \else{$C_A/C_F$}\fi} Data collected at the Z resonance using the DELPHI detector at LEP are used to determine the charged hadron multiplicity in gluon and quark...
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...
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...
Casado, M P, Dos Anjos, A, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, ...
The ATLAS experiment at the Large Hadron Collider (LHC) has an interaction rate of up to $10^9$ Hz. The trigger must efficiently select interesting events while rejecting the large amount of...
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...
Masses, lifetimes and production rates of $\Xi-$ and $anti\Xi+$ at LEP 1 (2006)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Measurements of the Xi- and anti-Xi+ masses, mass differences, lifetimes and lifetime differences are presented. The anti-Xi+ sample used is much larger than those used previously for such...
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...
Evidence for an excess of soft photons in hadronic decays of $Z^{0}$ (2006)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Soft photons inside hadronic jets converted in front of the DELPHI main tracker (TPC) in events of qqbar disintegrations of the Z^0 were studied in the kinematic range 0.2 < E_gamma < 1 GeV and...
Testing on a Large Scale (2006)
Burckhart-Chromek, Doris, Abolins, M, Adragna, P, Albuquerque-Portes, M, Alexandrov, L, Amorim, A, ...
The ATLAS Data Acquisition (DAQ) and High Level Trigger (HLT) software system will be comprised initially of 2000 PC nodes which take part in the control, event readout, second level trigger and...
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- v_t, h- pi0 v_t, h- pi0 pi0 v_t, h- \geq 2pi0 v_t, h- \geq 3pi0 v_t, 2h- h+ v_t, 2h- h+ pi0 v_t, 2h- h+...
Search for excited leptons in $e^{+}e^{-}$ collisions at $\sqrt{s}=189-209 GeV$ (2006)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
A search for excited lepton production in e+e- collisions was performed using the data collected by the DELPHI detector at LEP at centre-of-mass energies ranging from 189 GeV to 209 GeV,...
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 quarks events (light= \ell \equiv u,d,s) has been performed using the CAMBRIDGE and DURHAM jet...
Burckhart-Chromek, Doris, Abolins, M, Adragna, P, Alexandrov, L, Amorim, A, Armstrong, S, ...
The ATLAS Data Acquisition (DAQ) and High Level Trigger (HLT) software system will be comprised initially of 2000 PC nodes which take part in the control, event readout, second level trigger and...
Search for neutral MSSM Higgs bosons at LEP (2006)
Schael, S, Barate, R, Brunelière, R, De Bonis, I, Décamp, 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...
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...
A determination of the centre-of-mass energy at LEP2 using radiative two-fermion events (2006)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Using e+e- -> mu+mu-(gamma) and e+e- -> qqbar(gamma) events radiative to the Z pole, DELPHI has determined the centre-of-mass energy, sqrt{s}, using energy and momentum constraint methods. The...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
The production of single charged and neutral intermediate vector bosons in e+e- collisions has been studied in the data collected by the DELPHI experiment at LEP at centre-of-mass energies between...
Search for $\eta_b$ in two-photon collisions at LEP II with the DELPHI detector (2006)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
The pseudoscalar meson \eta_b has been searched for in two-photon interactions at LEP II. The data sample corresponds to a total integrated luminosity of 617 pb^-1 at centre-of-mass energies ranging...
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...
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
EP-PH 2005-015
Single intermediate vector boson production in e+e- collisions at sqrt(s) = 183 - 209 GeV (2006)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
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...
Implementation and performance of the third level muon trigger of the ATLAS experiment at LHC (2006)
Armstrong, S., A. Assamagan, K., P. Bee, C., Bellomo, M., Biglietti, M., ...
The trigger system of the ATLAS experiment at the LHC aims at a high selectivity in order to keep the full physics potential while reducing the 40 MHz initial event rate imposed by the LHC bunch...
Deployment of the ATLAS High-Level Trigger (2006)
Dos Anjos, A., Armstrong, S., P. Beck, H., Bee, C.P., Biglietti, M., ...
The ATLAS combined test beam in the second half of 2004 saw the first deployment of the ATLAS High-Level Trigger (HLT). The next steps are deployment on the pre-series farms in the experimental area...
Implementation and performance of the third level muon trigger of the ATLAS experiment at LHC (2006)
Armstrong, S., A. Assamagan, K., P. Bee, C., Bellomo, M., Biglietti, M., ...
The trigger system of the ATLAS experiment at the LHC aims at a high selectivity in order to keep the full physics potential while reducing the 40 MHz initial event rate imposed by the LHC bunch...
Deployment of the ATLAS High-Level Trigger (2006)
Dos Anjos, A., Armstrong, S., P. Beck, H., Bee, C.P., Biglietti, M., ...
The ATLAS combined test beam in the second half of 2004 saw the first deployment of the ATLAS High-Level Trigger (HLT). The next steps are deployment on the pre-series farms in the experimental area...
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,...
Implementation and performance of the third level muon trigger of the ATLAS experiment at LHC (2006)
Armstrong, S., A. Assamagan, K., P. Bee, C., Bellomo, M., Biglietti, M., ...
The trigger system of the ATLAS experiment at the LHC aims at a high selectivity in order to keep the full physics potential while reducing the 40 MHz initial event rate imposed by the LHC bunch...
Deployment of the ATLAS High-Level Trigger (2006)
Dos Anjos, A., Armstrong, S., P. Beck, H., Bee, C.P., Biglietti, M., ...
The ATLAS combined test beam in the second half of 2004 saw the first deployment of the ATLAS High-Level Trigger (HLT). The next steps are deployment on the pre-series farms in the experimental area...
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,...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
This paper presents DELPHI measurements and interpretations of cross-sections, forward-backward asymmetries, and angular distributions, for the e+e- -> ffbar process for centre-of-mass energies above...
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...
Flavour Independent Searches for Hadronically Decaying Neutral Higgs Bosons (2005)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
This paper describes flavour independent searches for hadronically decaying neutral Higgs bosons in the data collected by the DELPHI experiment at LEP, at centre-of-mass energies between 189 and 209...
Charged-particle multiplicity in three-jet events and two-gluon systems (2005)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
The charged particle multiplicity in hadronic three-jet events from Z decays is investigated. The topology dependence of the event multiplicity is found to be well described by a modified leading...
Production of $\Xi_{c}^{0}$ and $\Xi_{b}$ in Z decays and lifetime measurement of $\Xi_{b}$ (2005)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
The charmed strange baryon Xi_c^0 was searched for in the decay channel Xi_c^0 -> Xi- pi+, and the beauty strange baryon Xi_b in the inclusive channel Xi_b -> Xi- l- anti-nu X, using the 3.5 million...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Moments of the hadronic invariant mass and of the lepton energy spectra in semileptonic B decays have been determined with the data recorded by the DELPHI detector at LEP. From measurements of the...
Precision Electroweak Measurements on the Z Resonance (2005)
Schael, S, Barate, R, Brunelière, R, Buskulic, Damir, De Bonis, I, Décamp, D, ...
We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17...
Bose-Einstein correlations in $W^{+}W^{-}$ events at LEP2 (2005)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Bose-Einstein correlations (BEC) between final state particles in the reaction e+e- -> W+W- -> q_1 anti-q_2 q_3 anti-q_4 have been studied. Data corresponding to a total integrated luminosity of 550...
Santamarina-Rios, C, Conde-Muíño, P, Dos Anjos, A, Armstrong, S, Baines, J T M, Bee, C P, ...
ATLAS is one of the four LHC experiments that will start data taking in 2007, designed to cover a wide range of physics topics. The ATLAS trigger system has to cope with a rate of 40 MHz and 23...
Gesualdi-Mello, A, Anjos, A, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, ...
The ATLAS experiment at the Large Hadron Collider (LHC) will face the challenge of efficiently selecting interesting candidate events in pp collisions at 14 TeV center-of-mass energy, whilst...
Schiavi, C, Armstrong, S, Dos Anjos, A, Baines, J T M, Bee, C P, Biglietti, M, ...
The ATLAS experiment at the Large Hadron Collider (LHC) will face the challenge of efficiently selecting interesting candidate events in pp collisions at 14 TeV center of mass energy, while rejecting...
A Level-2 trigger algorithm for the identification of muons in the ATLAS Muon Spectrometer (2005)
Di Mattia, A, Armstrong, S, Dos Anjos, A, Baines, J T M, Bee, C P, Biglietti, M, ...
The ATLAS Level-2 trigger provides a software-based event selection after the initial Level-1 hardware trigger. For the muon events, the selection is decomposed in a number of broad steps: first, the...
Charged Particle Multiplicity in Three-Jet Events and Two-Gluon Systems (2005)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
EP-PH 2005-019
Bose-Einstein Correlations in W ^ + W ^ - events at LEP2 (2005)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
Coherent soft particle production in \mathbf Z Decays into three jets (2005)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
Production of \Xi_c^0 and \Xi_b in Z decays and lifetime measurement of \Xi_b (2005)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
Flavour Independent Searches for Hadronically Decaying Neutral Higgs Bosons (2005)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
Photon Events with Missing Energy in e+e- Collisions at sqrt (s) = 130 to 209 GeV (2005)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
Armstrong, S., Dos Anjos, A., P. Bee, C., Biglietti, M., A. Bogaerts, J., ...
The Event Filter (EF) selection stage is a fundamental component of the ATLAS Trigger and Data Acquisition architecture. Its primary function is the reduction of data flow and rate to values...
Armstrong, S., Dos Anjos, A., P. Bee, C., Biglietti, M., A. Bogaerts, J., ...
The Event Filter (EF) selection stage is a fundamental component of the ATLAS Trigger and Data Acquisition architecture. Its primary function is the reduction of data flow and rate to values...
Armstrong, S., Dos Anjos, A., P. Bee, C., Biglietti, M., A. Bogaerts, J., ...
The Event Filter (EF) selection stage is a fundamental component of the ATLAS Trigger and Data Acquisition architecture. Its primary function is the reduction of data flow and rate to values...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Hadronic events from the data collected with the DELPHI detector at LEP within the energy range from 89 GeV to 209 GeV are selected, their jet rates are determined and compared to predictions of four...
Coherent soft particle production in Z decays into three jets (2004)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Low-energy particle production perpendicular to the event plane in three-jet events produced in Z decays in e+e- annihilation is measured and compared to that perpendicular to the event axis in...
Portable Gathering System for Monitoring and Online Calibration at ATLAS (2004)
Conde-Muíño, P, Armstrong, S, Dos Anjos, A, Baines, J T M, Bee, C P, Biglietti, M, ...
During the runtime of any experiment, a central monitoring system that detects problems as soon as they appear has an essential role. In a large experiment, like ATLAS, the online data acquisition...
Searches for Neutral Higgs Bosons in Extended Models (2004)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Searches for neutral Higgs bosons produced at LEP in association with Z bosons, in pairs and in the Yukawa process are presented in this paper. Higgs boson decays into b quarks, tau leptons, or other...
A 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, using both...
Determination of the $e^+ e^- \to \gamma \gamma (\gamma)$ 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- -> gamma gamma (gamma) is reported, using the data collected with the DELPHI detector at LEP 2. The data analysed were recorded at centre-of-mass energies...
Photon Events with Missing Energy in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 130 to 209 GeV (2004)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
The production of single- and multi-photon events has been studied in the reaction e+e- -> gamma (gamma) + invisible particles. The data collected with the DELPHI detector during the years 1999 and...
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 LLEbar or UbarDbarDbar term have been performed using the data collected...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Tau-pair production in the process e+e- -> e+e-tau+tau- was studied using data collected by the DELPHI experiment at LEP2 during the years 1997 - 2000. The corresponding integrated luminosity is 650...
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...
Search for fermiophobic Higgs bosons in final states with photons at LEP 2 (2004)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Higgs boson production with subsequent decay to photons was searched for in the data collected by the DELPHI detector at centre-of-mass energies between 183 GeV and 209 GeV, corresponding to a total...
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 cbar) via Flavour Changing Neutral Currents (FCNC) was performed using the data taken by the DELPHI detector at LEP2. The data analysed have been...
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 $B^{0}_{s}-\overline{B^{0}_{s}}$ 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 $\Lambda_{b}^{0}$ Decay Form Factor (2004)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
The form factor of Lambda_b^0 baryons is estimated using 3.46 10^6 hadronic Z decays collected by the DELPHI experiment between 1992 and 1995. Charmed Lambda_c^+ baryons fully reconstructed in the...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
The forward-backward asymmetries of the processes e+e- -> Z -> b bbar and e+e- -> Z -> c cbar were measured from a sample of hadronic Z decays collected by the DELPHI experiment between 1993 and...
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 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 Z0 mass pole and up to 208 GeV. Those data were used to search for SUSY in the Anomaly...
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...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Data from Z decays in DELPHI have been searched for anti-B0d -> D*+ l- anti-nu_l with the D*+ decaying to D0 pi+ and D0 -> K- pi+, K- pi+ pi+ pi- or K- pi+ (pi0). These events are used to measure the...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Final results from the DELPHI Collaboration on the lifetime of B+ and B0 mesons and the mean b-hadron lifetime, are presented using the data collected at the Z0 peak in 1994 and 1995. Elaborate,...
Determination of the e+e - \ to gam gam (gam) cross-section at LEP (2004)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
Search for fermiophobic Higgs bosons in final states with photons at LEP 2 (2004)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
Search for single top production via FCNC at LEP at sqrt (s) = 189-208 GeV (2004)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
Search for B^0_s - \barB^0_s oscillations in DELPHI using high-p_t leptons (2004)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
Searches for Neutral Higgs Bosons in Extended Models (2004)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
Search for Charged Higgs Bosons at LEP in General Two Higgs Doublet Models (2004)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
EP 2003-083
Measurement of the \bold Lambda b^0 Decay Form Factor (2004)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
Search for SUSY in the AMSB scenario with the DELPHI detector (2004)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
A precise measurement of the tau lifetime (2004)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Search for fermiophobic Higgs bosons in final states with photons at LEP2 (2004)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
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 charged Higgs bosons at LEP in general two Higgs doublet models (2004)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
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...
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...
Algorithms for the ATLAS high-level trigger (2004)
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
Following rigorous software design and analysis methods, an object-based architecture has been developed to derive the second- and third-level trigger decisions for the future ATLAS detector at the...
The second level trigger of the ATLAS experiment at CERN's LHC (2004)
Dos Anjos, A., Abolins, M., Armstrong, S., T. Baines, J., Barisonzi, M., P. Beck, H., ...
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to /spl sim/100 kHz, /spl sim/2 kHz and /spl sim/200 Hz. The high...
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
The ATLAS High Level Trigger's (HLT) primary function of event selection will be accomplished with a Level-2 trigger farm and an event filter (EF) farm, both running software components developed in...
Ventura, A., Armstrong, S., Assamagan, A., Baines, J.T.M., Bee, C.P., Bellomo, M., ...
The ATLAS trigger system is composed of three levels: an initial hardware trigger level (LVL1) followed by two software-based stages (LVL2 trigger and event filter) included in the high level trigger...
Armstrong, S., Anjos, A.D., Baines, J.T.M., Bee, C.P., Biglietti, M., Bogaerts, J.A., ...
The ATLAS experiment at the Large Hadron Collider (LHC) will face the challenge of efficiently selecting interesting candidate events in pp collisions at 14 TeV center of mass energy, while rejecting...
Armstrong, S., Anjos, A.D., Baines, J.T.M., Bee, C.P., Biglietti, M., Bogaerts, J.A., ...
The ATLAS experiment at the Large Hadron Collider (LHC) will face the challenge of efficiently selecting interesting candidate events in pp collisions at 14 TeV center of mass energy, while rejecting...
Ventura, A., Armstrong, S., Assamagan, A., Baines, J.T.M., Bee, C.P., Bellomo, M., ...
The ATLAS trigger system is composed of three levels: an initial hardware trigger level (LVL1) followed by two software-based stages (LVL2 trigger and event filter) included in the high level trigger...
The second level trigger of the ATLAS experiment at CERN's LHC (2004)
Dos Anjos, A., Abolins, M., Armstrong, S., T. Baines, J., Barisonzi, M., P. Beck, H., ...
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to /spl sim/100 kHz, /spl sim/2 kHz and /spl sim/200 Hz. The high...
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
The ATLAS High Level Trigger's (HLT) primary function of event selection will be accomplished with a Level-2 trigger farm and an event filter (EF) farm, both running software components developed in...
Algorithms for the ATLAS high-level trigger (2004)
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
Following rigorous software design and analysis methods, an object-based architecture has been developed to derive the second- and third-level trigger decisions for the future ATLAS detector at 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...
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 charged Higgs bosons at LEP in general two Higgs doublet models (2004)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
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 fermiophobic Higgs bosons in final states with photons at LEP2 (2004)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
A precise measurement of the tau lifetime (2004)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
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...
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...
Armstrong, S., Anjos, A.D., Baines, J.T.M., Bee, C.P., Biglietti, M., Bogaerts, J.A., ...
The ATLAS experiment at the Large Hadron Collider (LHC) will face the challenge of efficiently selecting interesting candidate events in pp collisions at 14 TeV center of mass energy, while rejecting...
Ventura, A., Armstrong, S., Assamagan, A., Baines, J.T.M., Bee, C.P., Bellomo, M., ...
The ATLAS trigger system is composed of three levels: an initial hardware trigger level (LVL1) followed by two software-based stages (LVL2 trigger and event filter) included in the high level trigger...
The second level trigger of the ATLAS experiment at CERN's LHC (2004)
Dos Anjos, A., Abolins, M., Armstrong, S., T. Baines, J., Barisonzi, M., P. Beck, H., ...
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to /spl sim/100 kHz, /spl sim/2 kHz and /spl sim/200 Hz. The high...
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
The ATLAS High Level Trigger's (HLT) primary function of event selection will be accomplished with a Level-2 trigger farm and an event filter (EF) farm, both running software components developed in...
Algorithms for the ATLAS high-level trigger (2004)
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
Following rigorous software design and analysis methods, an object-based architecture has been developed to derive the second- and third-level trigger decisions for the future ATLAS detector at 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...
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 charged Higgs bosons at LEP in general two Higgs doublet models (2004)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
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 fermiophobic Higgs bosons in final states with photons at LEP2 (2004)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
A precise measurement of the tau lifetime (2004)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
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...
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...
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 fermiophobic Higgs bosons in final states with photons at LEP 2 (2004)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Higgs boson production with subsequent decay to photons was searched for in the data collected by the DELPHI detector at centre-of-mass energies between 183 GeV and 209 GeV, corresponding to a total...
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...
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] â Dstar+ l(-) (ν) over bar (l) with the Dstar+ decaying to D(0)pi(+) and D-0 â K(-)pi(+), K(-)pi(+)pi(+)pi(- ) or...
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...
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Tau-pair production in the process e(+)e(-) → e(+)e(-) tau(+)tau(-) was studied using data collected by the DELPHI experiment at LEP2 during the years 1997 - 2000. The corresponding integrated...
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...
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...
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...
An Overview of the ATLAS High Level Trigger Dataflow and Supervision (2003)
Wheeler, S, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
The ATLAS High Level Trigger (HLT) system provides software-based event selection after the initial LVL1 hardware trigger. It is composed of two stages, the LVL2 trigger and the Event Filter (EF)....
MCC: the Module Controller Chip for the ATLAS Pixel Detector. (2003)
Beccherle, R, Blanquart, L, Boyd, R, Calvet, D, Comes, G, Darbo, G, ...
In this article we describe the architecture of the Module Controller Chip for the ATLAS Pixel Detector. The project started in 1997 with the definition of the system specifications. A first...
An Overview of Algorithms for the ATLAS High Level Trigger (2003)
Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, Boisvert, V, ...
Following rigorous software design and analysis methods, an object-based architecture has been developed to derive the second- and third-level trigger decisions for the future ATLAS detector at the...
The ATLAS Silicon Pixel Sensors (2003)
Alam, M S, Ciocio, A, Einsweiler, K F, Emes, J, Gilchriese, M G D, Joshi, A, ...
Prototype sensors for the ATLAS silicon pixel detector have been developed. The design of the sensors is guided by the need to operate them in the severe LHC radiation environment at up to several...
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...
Wiedenmann, W, Armstrong, S R, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
The Atlas High Level Trigger's primary function of event selection will be accomplished with a Level-2 trigger farm and an Event Filter farm, both running software components developed in the Atlas...
A Measurement of Lorentz Angle and Spatial Resolution of Radiation Hard Silicon Pixel Sensors (2003)
Gorelov, I, Gorfine, G W, Hoeferkamp, M, Seidel, S C, Ciocio, A, Einsweiler, Kevin F, ...
Silicon pixel sensors developed by the ATLAS collaboration to meet LHC requirements and to withstand hadronic irradiation to fluences of up to $10^{15} n_eq/cm^{2}$ have been evaluated using a test...
A 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 Z0 decays have been measured with the DELPHI detector at LEP. An algorithm has been developed, based on a neural...
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 600...
b-tagging in DELPHI at LEP (2003)
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...
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 K0_sK+-pi-+, K+K-K+K- and K+K-pi+pi- in the data taken with the DELPHI detector at LEP1 and LEP2 energies. The...
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...
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 reactions gammagamma → J/psi + X is seen. The number of observed...
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...
Architecture of the ATLAS High Level Trigger Event Selection Software (2003)
Grothe, M, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
The ATLAS High Level Trigger (HLT) consists of two selection steps: the second level trigger and the event filter. Both will be implemented in software, running on mostly commodity hardware. Both...
The Algorithm Steering and Trigger Decision mechanism of the ATLAS High Level Trigger (2003)
Comune, G, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
Given the extremely high output rate foreseen at LHC and the general-purpose nature of ATLAS experiment, an efficient and flexible way to select events in the High Level Trigger is needed. An...
Supervision of the ATLAS High Level Trigger System (2003)
Wheeler, S, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
The ATLAS High Level Trigger (HLT) system provides software-based event selection after the initial LVL1 hardware trigger. It is composed of two stages, the LVL2 trigger and the Event Filter. The HLT...
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...
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 -> Dbar_(s)X, D_(s) = (D0, D+, Ds), is studied using the data collected by the DELPHI experiment in the years 1994 and 1995. Charmed mesons in Z -> bbbar...
Final results from DELPHI on the searches for SM and MSSM Neutral Higgs bosons (2003)
Abdallah, J, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, 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...
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 202 GeV. A phenomenological analysis...