I. Riu

Publication List Details

Period

1994 - 2009

Number

402

Co-Authors

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...

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...

Integration of the trigger and data acquisition systems in ATLAS (2008)

Riu, I., Et Al, ., Vermeulen, J.

During 2006 and spring 2007, integration and commissioning of trigger and data acquisition (TDAQ) equipment in the ATLAS experimental area has progressed. Much of the work has focused on a final...

The ALEPH Collaboration (2007)

R. Barate, D. Buskulic, D. Decamp, P. Ghez, C. Goy, ...

Extensive searches for evidence of compositeness of quarks and leptons have been made using the full set of ALEPH data from LEP running at the Z peak. They include searches for radiative and weak...

Search for Sleptons in E (2007)

Gamma Collisions At, B. Pietrzyk, I. Riu, F. Sanchez

The data collected by the ALEPH experiment at LEP at centre--of--mass energies around 183 GeV are analysed to search for sleptons, the partners of leptons in supersymmetric theories. The previously...

ATLAS liquid argon calorimeter back end electronics (2007)

Bán, J, Bazan, A, Bellachia, F, Blondel, A, Böttcher, S, Clark, A, ...

The Liquid Argon calorimeters play a central role in the ATLAS (A Toroidal LHC Apparatus) experiment. The environment at the Large Hadron Collider (LHC) imposes strong constraints on the detectors...

ATLAS liquid argon calorimeter back end electronics (2007)

Bán, J., Bazan, A., Bellachia, F., Blondel, A., Böttcher, S., Clark, A., ...

The Liquid Argon calorimeters play a central role in the ATLAS (A Toroidal LHC Apparatus) experiment. The environment at the Large Hadron Collider (LHC) imposes strong constraints on the detectors...

ATLAS liquid argon calorimeter back end electronics (2007)

Bán, J., Bazan, A., Bellachia, F., Blondel, A., Böttcher, S., Clark, A., ...

The Liquid Argon calorimeters play a central role in the ATLAS (A Toroidal LHC Apparatus) experiment. The environment at the Large Hadron Collider (LHC) imposes strong constraints on the detectors...

ATLAS liquid argon calorimeter back end electronics (2007)

Bán, J., Bazan, A., Bellachia, F., Blondel, A., Böttcher, S., Clark, A., ...

The Liquid Argon calorimeters play a central role in the ATLAS (A Toroidal LHC Apparatus) experiment. The environment at the Large Hadron Collider (LHC) imposes strong constraints on the detectors...

The GNAM system in the ATLAS online monitoring framework (2006)

Salvatore, D, Adragna, P, Bosman, M, Sushkov, S, Burckhart, D, Costa, M J, ...

ATLAS is one of the four experiments under construction along the Large Hadron Collider (LHC) ring, which will produce interactions at a center of mass energy of 14 TeV at 40 MHz rate. The detector...

Polarization of Λ and Λ overbar in 920 GeV fixed-target proton–nucleus collisions (2006)

Abt, I., Adams, M., Albrecht, H., Amaral, V., Amorim, A., ...

A measurement of the polarization of Λ and baryons produced in pC and pW collisions at has been performed with the HERA-B spectrometer. The measurements cover the kinematic range of 0.6 GeV/c

Measurement of the Υ production cross section in 920 GeV fixed-target proton–nucleus collisions (2006)

Abt, I., Adams, M., Albrecht, H., Amaral, V., Amorim, A., ...

The cross section ratio RJ/ψ=Br(Υ→l+l−)dσ(Υ)/dy|y=0/σ(J/ψ) has been measured with the HERA-B spectrometer in fixed-target proton–nucleus collisions at 920 GeV proton beam energy...

Improved measurement of the b[overline b] production cross section in 920 GeV fixed-target proton-nucleus collisionsnd in 920 GeV fixed-target proton–nucleus collisions (2006)

Abt, I., Adams, M., Albrecht, H., Amaral, V., Amorim, A., ...

A new measurement of the b[overline b] production cross section in 920 GeV proton-nucleus collisions is presented by the HERA-B Collaboration. The b[overline b] production is tagged via inclusive...

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...

Updated measurement of the $\tau$ lepton lifetime (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A new measurement of the mean lifetime of the tau lepton is presented. Three different analysis methods are applied to a sample of 90000 tau pairs, collected in 1993 and 1994 with the ALEPH detector...

Searches for scalar top and scalar bottom quarks at LEP2 (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

Searches for scalar top and bottom quarks have been performed with data collected by the ALEPH detector at LEP. The data sample consists of 21.7 pb^-1 taken at sqrt{s} = 161, 170, and 172~GeV and 5.7...

Search for sleptons in $e^+ e^-$ collisions at centre-of-mass energies of 161 GeV and 172 GeV. (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The data recorded by the ALEPH experiment at LEP at centre-of-mass energies of 161 GeV and 172 GeV were analysed to search for sleptons, the supersymmetric partners of leptons. No evidence for the...

Search for sleptons in $e^+ e^-$ collisions at centre-of-mass energies of 161 GeV and 172 GeV. (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The data recorded by the ALEPH experiment at LEP at centre-of-mass energies of 161 GeV and 172 GeV were analysed to search for sleptons, the supersymmetric partners of leptons. No evidence for the...

Searches for scalar top and scalar bottom quarks at LEP2 (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

Searches for scalar top and bottom quarks have been performed with data collected by the ALEPH detector at LEP. The data sample consists of 21.7 pb^-1 taken at sqrt{s} = 161, 170, and 172~GeV and 5.7...

Updated measurement of the $\tau$ lepton lifetime (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A new measurement of the mean lifetime of the tau lepton is presented. Three different analysis methods are applied to a sample of 90000 tau pairs, collected in 1993 and 1994 with the ALEPH detector...

Search for sleptons in $e^+ e^-$ collisions at centre-of-mass energies of 161 GeV and 172 GeV. (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The data recorded by the ALEPH experiment at LEP at centre-of-mass energies of 161 GeV and 172 GeV were analysed to search for sleptons, the supersymmetric partners of leptons. No evidence for the...

Searches for scalar top and scalar bottom quarks at LEP2 (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

Searches for scalar top and bottom quarks have been performed with data collected by the ALEPH detector at LEP. The data sample consists of 21.7 pb^-1 taken at sqrt{s} = 161, 170, and 172~GeV and 5.7...

Updated measurement of the $\tau$ lepton lifetime (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A new measurement of the mean lifetime of the tau lepton is presented. Three different analysis methods are applied to a sample of 90000 tau pairs, collected in 1993 and 1994 with the ALEPH detector...

Study of Fermion Pair Production in $e^{+}e^{-}$ Collisions at 130-183 GeV (2005)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

The cross sections and forward-backward asymmetries of hadronic and leptonic events produced in e+e- collisions at centre-of-mass energies of 130-183 GeV are presented. Results for ee, mumu, tautau,...

Study of $\tau$ decays involving kaons, spectral functions and determination of the strange quark mass (2005)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Merle, E., ...

All ALEPH measurements of branching ratios of tau decays involving kaons are summarized including a combination of results obtained with K^0_S and K^0_L detection. The decay dynamics are studied,...

Measurement of triple gauge-boson WW$\gamma$ couplings at LEP2 using photonic events (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Jezequel, S., ...

A study of events with photons and missing energy has been performed with the data sample obtained with the ALEPH detector at centre-of-mass energies from 161 to 184 GeV,corresponding to a total...

Search for pair-production of long-lived heavy charged particles in $e^+ e^-$ annihilation (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A search for pair-production of long-lived, heavy, singly-charged particles has been performed with data collected by the ALEPH detector at a centre-of-mass energy of 172 GeV. Data at \sqrt{s} = 161,...

Search for pair-production of long-lived heavy charged particles in $e^+ e^-$ annihilation (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A search for pair-production of long-lived, heavy, singly-charged particles has been performed with data collected by the ALEPH detector at a centre-of-mass energy of 172 GeV. Data at \sqrt{s} = 161,...

Measurement of triple gauge-boson WW$\gamma$ couplings at LEP2 using photonic events (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Jezequel, S., ...

A study of events with photons and missing energy has been performed with the data sample obtained with the ALEPH detector at centre-of-mass energies from 161 to 184 GeV,corresponding to a total...

Study of $\tau$ decays involving kaons, spectral functions and determination of the strange quark mass (2005)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Merle, E., ...

All ALEPH measurements of branching ratios of tau decays involving kaons are summarized including a combination of results obtained with K^0_S and K^0_L detection. The decay dynamics are studied,...

Study of Fermion Pair Production in $e^{+}e^{-}$ Collisions at 130-183 GeV (2005)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

The cross sections and forward-backward asymmetries of hadronic and leptonic events produced in e+e- collisions at centre-of-mass energies of 130-183 GeV are presented. Results for ee, mumu, tautau,...

Search for pair-production of long-lived heavy charged particles in $e^+ e^-$ annihilation (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A search for pair-production of long-lived, heavy, singly-charged particles has been performed with data collected by the ALEPH detector at a centre-of-mass energy of 172 GeV. Data at \sqrt{s} = 161,...

Measurement of triple gauge-boson WW$\gamma$ couplings at LEP2 using photonic events (2005)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Jezequel, S., ...

A study of events with photons and missing energy has been performed with the data sample obtained with the ALEPH detector at centre-of-mass energies from 161 to 184 GeV,corresponding to a total...

Study of $\tau$ decays involving kaons, spectral functions and determination of the strange quark mass (2005)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Merle, E., ...

All ALEPH measurements of branching ratios of tau decays involving kaons are summarized including a combination of results obtained with K^0_S and K^0_L detection. The decay dynamics are studied,...

Study of Fermion Pair Production in $e^{+}e^{-}$ Collisions at 130-183 GeV (2005)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

The cross sections and forward-backward asymmetries of hadronic and leptonic events produced in e+e- collisions at centre-of-mass energies of 130-183 GeV are presented. Results for ee, mumu, tautau,...

Limits for the central production of Θ+ and Ξ-- pentaquarks in 920 GeV pA collsions (2004)

Abt, I., Adams, M., Albrecht, H., Amaral, V., Amorim, A., Aplin, S. J., ...

We have searched for Theta^+(1540) and Xi^{--}(1862) pentaquark candidates in proton-induced reactions on C, Ti and W targets at mid-rapidity and \sqrt{s} = 41.6 GeV. In 2x10^8 inelastic events we...

Search for the Flavor-Changing Neutral Current Decay D0->μ+μ- with the HERA-B Detector (2004)

Abt, I., Adams, M., Albrecht, H., Amaral, V., Amorim, A., Aplin, S. J., ...

We report on a search for the flavor-changing neutral current decay $D^0 \to \mu^+\mu^-$ using $50 \times 10^6$ events recorded with a dimuon trigger in interactions of 920 GeV protons with nuclei by...

Search for the flavor-changing neutral current decay D0→μ0+μ- with the HERA-B detector (2004)

Abt, I., Adams, M., Albrecht, H., Amaral, V., Amorim, A., ...

We report on a search for the flavor-changing neutral current decay D0→μ+μ- using 50×106 events recorded with a dimuon trigger in interactions of 920 GeV protons with nuclei by the HERA-B...

Measurement of the b(b)over-bar production cross section in 920 GeV fixed-target proton-nucleus collisions (2003)

Abt, I., Abyzov, A., Adams, M., Albrecht, H., Amaral, V., Amorim, A., ...

Using the HERA-B detector, the b (b) over bar production cross section has been measured in 920 GeV proton collisions on carbon and titanium targets. The b (b) over bar production was tagged via...

Inclusive V 0 production cross sections from 920 GeV fixed target proton-nucleus collisions (2003)

Abt, I., Abyzov, A., Adams, M., Albrecht, H., Amaral, V., Amorim, A., ...

Inclusive differential cross sections dσpA/dxF and dσpA/dp2t for the production of K0S, Λ, and Λ particles are measured at HERA in proton-induced reactions on C, Al, Ti, and W targets. The...

J/ψ production via χc decays in 920 GeV pA interactions (2003)

Abt, I., Abyzov, A., Adams, M., Albrecht, H., Amaral, V., Amorim, A., ...

Using data collected by the HERA-B experiment, we have measured the fraction of J/ψ’s produced via radiative χc decays in interactions of 920 GeV protons with carbon and titanium targets. We...

Measurement of the b(b)over-bar production cross section in 920 GeV fixed-target proton-nucleus collisions (2003)

Abt, I., Abyzov, A., Adams, M., Albrecht, H., Amaral, V., Amorim, A., ...

Using the HERA-B detector, the b (b) over bar production cross section has been measured in 920 GeV proton collisions on carbon and titanium targets. The b (b) over bar production was tagged via...

J/ψ production via χc decays in 920 GeV pA interactions (2003)

Abt, I., Adams, M., Albrecht, H., Amaral, V., Amorim, A., ...

Using data collected by the HERA-B experiment, we have measured the fraction of J/ψ's produced via radiative χc decays in interactions of 920 GeV protons with carbon and titanium targets. We...

Track finding at 10-MHz hadronic event rate (2002)

Bruinsma, M., Fleckenstein, H., Gerndt, E. K. E., Flammer, J., Michetti, A., Negri, I., ...

Hera-B is a fixed target experiment using a halo target inside the HERA proton ring to generate B mesons in 920 GeV proton- nucleus interactions. The first-level trigger (FLT) (see Table I for a list...

The First-Level Trigger of the HERA-B experiment: performance and expectations (2002)

Balagura, V., Bruinsma, M., Fleckenstein, H., Flammer, J., Glass, J., Manner, R., ...

HERA-B is a fixed target spectrometer which uses 920 GeV protons incident on various target materials. The experiment is aimed to study various aspects of beauty and charm physics. The detector is...

Search for Single Top Production in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 189 - 202 GeV (2000)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

The single top production via flavour changing neutral currents in the reactions ee -> t c/u is searched for in approximately 411 pb-1 of data collected by ALEPH at centre-of-mass energies in the...

Search for the neutral Higgs bosons of the Standard Model and the MSSM in $e^{+}e^{-}$ collisions at $\sqrt{s}$ = 189 GeV (2000)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

Neutral Higgs bosons of the Standard Model and of the \MSSM\ aresearched for in the data collected at a centre-of-mass energy of \cme\,\G\ by the \ALEPH\ experiment at \LEP, with an integrated...

Fermi-Dirac Correlations in $\Lambda$ Pairs in Hadronic Z Decays (2000)

Barate, R, Décamp, D, Ghez, P, Goy, C, Lees, J P, Martin, F, ...

Two-particle correlations of Lambda Lambda and Anti-Lambda Anti-Lambda pairshave been studied in multihadronic Z decays recorded with the ALEPH detector at LEP in the years from 1992 to 1995. The...

Search for Gauge-Mediated SUSY Breaking Topologies at $\sqrt{s}\sim{189}$ GeV (2000)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

Searches for topologies characteristic of Gauge Mediated SUSY Breaking models (GMSB) are performed by analysing 173.6 pb^-1 of data collected at Ecm = 188.6~GeV with the ALEPH detector.These...

Bose-Einstein correlations in W-pair decays (2000)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

Bose-Einstein correlations are studied in semileptonicWW --> qqbarlnu and fully hadronic WW --> qqbarqqbar W-pair decays with the ALEPH detector at LEP at centre-of-mass energies of 172, 183 and...

Search for Single Top Production in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 189 - 202 GeV (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

The single top production via flavour changing neutral currents in the reactions ee -> t c/u is searched for in approximately 411 pb-1 of data collected by ALEPH at centre-of-mass energies in the...

Study of Charm Production in Z Decays (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Merle, E., ...

The production rates of D*+-, Ds*+-, D+-, D0 / D0bar, Ds+, and Lambda_c in Z to ccbar decays are measured using the LEP I data sample recorded by the ALEPH detector. The fractional energy spectrum of...

Inclusive Production of $\pi^{0}, \eta, \eta'(958), K^0_s$ and $\Lambda$ in Two- and Three-Jet Events from Hadronic Z Decays (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Merle, E., ...

The production rates and the inclusive cross sections of the isovector meson $\pi^0$, the isoscalar mesons $\eta$ and $\eta^\prime(958)$, the strange meson $\mathrm{K^0_S}$ and the $\Lambda$ baryon...

Search for the neutral Higgs bosons of the Standard Model and the MSSM in $e^{+}e^{-}$ collisions at $\sqrt{s}$ = 189 GeV (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Neutral Higgs bosons of the Standard Model and of the \MSSM\ aresearched for in the data collected at a centre-of-mass energy of \cme\,\G\ by the \ALEPH\ experiment at \LEP, with an integrated...

Search for Gauge-Mediated SUSY Breaking Topologies at $\sqrt{s} \sim$ 189 GeV (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Searches for topologies characteristic of Gauge Mediated SUSY Breaking models (GMSB) are performed by analysing 173.6 pb^-1 of data collected at Ecm = 188.6~GeV with the ALEPH detector.These...

Measurement of the Z Resonance Parameters at LEP (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Lucotte, A., ...

The properties of the Z resonance are measured from the analysis of 4.5 million Z decays into fermion pairs collected with the \Aleph\ detector at L EP. The data are consistent with lepton...

Search for the glueball candidates $f_{O}$(1500) and $f_{J}$(1710) in $\gamma\gamma$ collisions (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Merle, E., ...

Data taken with the ALEPH detector at LEP1 have been used to search for gamma gamma production of the glueball candidates f0(1500) and fJ(1710) via their decay to pi+pi-. No signal is observed and...

Search for R-Parity Violating Decays of Supersymmetric Particles in $e^{+} e^{-}$ Collisions at Centre-of-Mass Energies near 183 GeV (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Searches for pair-production of supersymmetric particles under the assumption that R-parity is violated via a single dominant $LL{\bar E}$, $LQ{\bar D}$ or ${\bar U} {\bar D} {\bar D}$ coupling are...

Bose-Einstein correlations in W-pair decays (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

Bose-Einstein correlations are studied in semileptonicWW --> qqbarlnu and fully hadronic WW --> qqbarqqbar W-pair decays with the ALEPH detector at LEP at centre-of-mass energies of 172, 183 and...

Fermi-Dirac Correlations in $\Lambda$ Pairs in Hadronic Z Decays (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Martin, F., ...

Two-particle correlations of Lambda Lambda and Anti-Lambda Anti-Lambda pairshave been studied in multihadronic Z decays recorded with the ALEPH detector at LEP in the years from 1992 to 1995. The...

Fermi-Dirac Correlations in $\Lambda$ Pairs in Hadronic Z Decays (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Martin, F., ...

Two-particle correlations of Lambda Lambda and Anti-Lambda Anti-Lambda pairshave been studied in multihadronic Z decays recorded with the ALEPH detector at LEP in the years from 1992 to 1995. The...

Bose-Einstein correlations in W-pair decays (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

Bose-Einstein correlations are studied in semileptonicWW --> qqbarlnu and fully hadronic WW --> qqbarqqbar W-pair decays with the ALEPH detector at LEP at centre-of-mass energies of 172, 183 and...

Search for R-Parity Violating Decays of Supersymmetric Particles in $e^{+} e^{-}$ Collisions at Centre-of-Mass Energies near 183 GeV (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Searches for pair-production of supersymmetric particles under the assumption that R-parity is violated via a single dominant $LL{\bar E}$, $LQ{\bar D}$ or ${\bar U} {\bar D} {\bar D}$ coupling are...

Search for the glueball candidates $f_{O}$(1500) and $f_{J}$(1710) in $\gamma\gamma$ collisions (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Merle, E., ...

Data taken with the ALEPH detector at LEP1 have been used to search for gamma gamma production of the glueball candidates f0(1500) and fJ(1710) via their decay to pi+pi-. No signal is observed and...

Measurement of the Z Resonance Parameters at LEP (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Lucotte, A., ...

The properties of the Z resonance are measured from the analysis of 4.5 million Z decays into fermion pairs collected with the \Aleph\ detector at L EP. The data are consistent with lepton...

Inclusive Production of $\pi^{0}, \eta, \eta'(958), K^0_s$ and $\Lambda$ in Two- and Three-Jet Events from Hadronic Z Decays (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Merle, E., ...

The production rates and the inclusive cross sections of the isovector meson $\pi^0$, the isoscalar mesons $\eta$ and $\eta^\prime(958)$, the strange meson $\mathrm{K^0_S}$ and the $\Lambda$ baryon...

Study of Charm Production in Z Decays (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Merle, E., ...

The production rates of D*+-, Ds*+-, D+-, D0 / D0bar, Ds+, and Lambda_c in Z to ccbar decays are measured using the LEP I data sample recorded by the ALEPH detector. The fractional energy spectrum of...

Search for Single Top Production in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 189 - 202 GeV (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

The single top production via flavour changing neutral currents in the reactions ee -> t c/u is searched for in approximately 411 pb-1 of data collected by ALEPH at centre-of-mass energies in the...

Search for the neutral Higgs bosons of the Standard Model and the MSSM in $e^{+}e^{-}$ collisions at $\sqrt{s}$ = 189 GeV (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Neutral Higgs bosons of the Standard Model and of the \MSSM\ aresearched for in the data collected at a centre-of-mass energy of \cme\,\G\ by the \ALEPH\ experiment at \LEP, with an integrated...

Search for Gauge-Mediated SUSY Breaking Topologies at $\sqrt{s} \sim$ 189 GeV (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Searches for topologies characteristic of Gauge Mediated SUSY Breaking models (GMSB) are performed by analysing 173.6 pb^-1 of data collected at Ecm = 188.6~GeV with the ALEPH detector.These...

Fermi-Dirac Correlations in $\Lambda$ Pairs in Hadronic Z Decays (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Martin, F., ...

Two-particle correlations of Lambda Lambda and Anti-Lambda Anti-Lambda pairshave been studied in multihadronic Z decays recorded with the ALEPH detector at LEP in the years from 1992 to 1995. The...

Bose-Einstein correlations in W-pair decays (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

Bose-Einstein correlations are studied in semileptonicWW --> qqbarlnu and fully hadronic WW --> qqbarqqbar W-pair decays with the ALEPH detector at LEP at centre-of-mass energies of 172, 183 and...

Search for R-Parity Violating Decays of Supersymmetric Particles in $e^{+} e^{-}$ Collisions at Centre-of-Mass Energies near 183 GeV (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Searches for pair-production of supersymmetric particles under the assumption that R-parity is violated via a single dominant $LL{\bar E}$, $LQ{\bar D}$ or ${\bar U} {\bar D} {\bar D}$ coupling are...

Search for the glueball candidates $f_{O}$(1500) and $f_{J}$(1710) in $\gamma\gamma$ collisions (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Merle, E., ...

Data taken with the ALEPH detector at LEP1 have been used to search for gamma gamma production of the glueball candidates f0(1500) and fJ(1710) via their decay to pi+pi-. No signal is observed and...

Measurement of the Z Resonance Parameters at LEP (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Lucotte, A., ...

The properties of the Z resonance are measured from the analysis of 4.5 million Z decays into fermion pairs collected with the \Aleph\ detector at L EP. The data are consistent with lepton...

Inclusive Production of $\pi^{0}, \eta, \eta'(958), K^0_s$ and $\Lambda$ in Two- and Three-Jet Events from Hadronic Z Decays (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Merle, E., ...

The production rates and the inclusive cross sections of the isovector meson $\pi^0$, the isoscalar mesons $\eta$ and $\eta^\prime(958)$, the strange meson $\mathrm{K^0_S}$ and the $\Lambda$ baryon...

Study of Charm Production in Z Decays (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Merle, E., ...

The production rates of D*+-, Ds*+-, D+-, D0 / D0bar, Ds+, and Lambda_c in Z to ccbar decays are measured using the LEP I data sample recorded by the ALEPH detector. The fractional energy spectrum of...

Search for Single Top Production in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 189 - 202 GeV (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

The single top production via flavour changing neutral currents in the reactions ee -> t c/u is searched for in approximately 411 pb-1 of data collected by ALEPH at centre-of-mass energies in the...

Search for the neutral Higgs bosons of the Standard Model and the MSSM in $e^{+}e^{-}$ collisions at $\sqrt{s}$ = 189 GeV (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Neutral Higgs bosons of the Standard Model and of the \MSSM\ aresearched for in the data collected at a centre-of-mass energy of \cme\,\G\ by the \ALEPH\ experiment at \LEP, with an integrated...

Search for Gauge-Mediated SUSY Breaking Topologies at $\sqrt{s} \sim$ 189 GeV (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Searches for topologies characteristic of Gauge Mediated SUSY Breaking models (GMSB) are performed by analysing 173.6 pb^-1 of data collected at Ecm = 188.6~GeV with the ALEPH detector.These...

Measurement of the Z resonance parameters at LEP (2000)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Lucotte, A., ...

The properties of the Z resonance are measured from the analysis of 4.5 million Z decays into fermion pairs collected with the ALEPII detector at LEP. The data are consistent with lepton...

Measurements of the structure of quark and gluon jets in hadronic Z decays (2000)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J.P., ...

An experimental investigation of the structure of identified quark and gluon jets is presented. Observables related to both the global and internal structure of jets are measured; this allows for...

Search for the glueball candidates $f_{0}$(1500) and $f_{J}$(1710) in $\gamma\gamma$ collisions in ALEPH Detector (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Lees, J P, Merle, E, ...

Data taken with the ALEPH detector at LEP1 have been used to search for gamma gamma production of the glueball candidates f0(1500) and fJ(1710) via their decay to pi+pi-. No signal is observed and...

Searches for sleptons and squarks in $e^{+}e^{-}$ collisions at 189 GeV (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

The data collected at a centre-of-mass energy of 188.6 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 173.6 pb$^{-1}$, are analysed in a search for the scalar partners of quarks...

Measurement of the $e^{+}e^{-} \to ZZ$ Production Cross Section at Centre-of-Mass Energies of 183 and 189 GeV (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

The e+e- -> ZZ cross section at sqrt(s)=182.7 and 188.6 GeV has been measured using the ALEPH detector. The analysis covers all of the visible ZZ final states and yields cross section measurements of...

A direct measurement of $|V_{cs}|$ in hadronic W decays using a charm tag (1999)

Barate, R, Abbaneo, D, Affholderbach, K, Ajaltouni, Ziad J, Alemany, R, Aleppo, M, ...

The inclusive charm production rate in W decays is measured from a study of the properties of final state particles. The sample of W pairs is selected from 67.7 pb-1 collected by ALEPH in 1996 and...

Search for an invisibly decaying Higgs boson in $e^{+}e^{-}$ collisions at 189 GeV (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

The data collected in 1998 by ALEPH at LEP at a centre-of-mass energy of 188.6 GeV, corresponding to an integrated luminosity of 176.2 pb-1, are analysed to search for invisible decays of a Higgs...

Inclusive Production of $\pi^{0}$, $\eta$, $\eta$'(958), $K^0_s$ and $\Lambda$ in Two- and Three-Jet Events from Hadronic Z Decays (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Lees, J P, Merle, E, ...

The production rates and the inclusive cross sections of the isovector meson $\pi^0$, the isoscalar mesons $\eta$ and $\eta^\prime(958)$, the strange meson $\mathrm{K^0_S}$ and the $\Lambda$ baryon...

Study of Charm Production in Z Decays (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Lees, J P, Merle, E, ...

The production rates of D*+-, Ds*+-, D+-, D0 / D0bar, Ds+, and Lambda_c in Z to ccbar decays are measured using the LEP I data sample recorded by the ALEPH detector. The fractional energy spectrum of...

Measurement of the Z Resonance Parameters at LEP (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Lees, J P, Lucotte, A, ...

The properties of the Z resonance are measured from the analysis of 4.5 million Z decays into fermion pairs collected with the \Aleph\ detector at L EP. The data are consistent with lepton...

Search for R-Parity Violating Decays of Supersymmetric Particles in $e^{+}e^{-}$ Collisions at Centre-of-Mass Energies near 183 GeV (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

Searches for pair-production of supersymmetric particles under the assumption that R-parity is violated via a single dominant $LL{\bar E}$, $LQ{\bar D}$ or ${\bar U} {\bar D} {\bar D}$ coupling are...

Determination of the LEP centre-of-mass energy from Z$\gamma$ events (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

Radiative returns to the Z resonance (Z\gamma events) are used to determine the LEP2 centre-of-mass energy from the data collected with the ALEPH detector in 1997. The average centre-of-mass energy...

A Study of Single W Production in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 161 - 183 GeV (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

Single W production is studied in the data recorded with the ALEPH detector at LEP at centre-of-mass energies between 161 and 183 GeV. The cross section is measured to be sigma_W=0.41+-0.17 (stat)...

Measurement of the W mass from the $WW \to q\overline{q}q\overline{q}$ channel with the ALEPH detector (1999)

Riu, I

This thesis work is part of the precision tests done at LEP2. The W boson pairs are produced through e+e- collisions. The fully leptonic final states (lvlv) correspond to 10.5 % of the...

Measurement of the Hadronic Photon-Structure Function at LEP 1 for $l$-Angle-$Q^{2}$ $r$-Angle Values between 9.9 and 284 $GeV^{2}$ (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Lees, J P, Merle, E, ...

Inclusive gamma^*gamma interactions to hadronic final states where one scattered electron or positron is detected in the electromagnetic calorimeters have been studied in the LEP 1 data taken by...

Study of Fermion Pair Production in $e^{+}e^{-}$ Collisions at 130-183 GeV (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

The cross sections and forward-backward asymmetries of hadronic and leptonic events produced in e+e- collisions at centre-of-mass energies of 130-183 GeV are presented. Results for ee, mumu, tautau,...

Measurement of W-pair production in $e^{+}e^{-}$ collisions at 183 GeV (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

The production of W+W- pairs is analysed in a data sample collected by ALEPH at a mean centre-of-mass energy of 182.7 GeV, corresponding to an integrated luminosity of 57 pb-1. Cross sections are...

Measurement of the W mass in $e^+ e^-$ collisions at 183 GeV (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 57 pb$^{-1}$ collected with the ALEPH detector in 1997 at...

Study of $\tau$ decays involving kaons, spectral functions and determination of the strange quark mass (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Lees, J P, Merle, E, ...

All ALEPH measurements of branching ratios of tau decays involving kaons are summarized including a combination of results obtained with K^0_S and K^0_L detection. The decay dynamics are studied,...

One-prong $\tau$ decays with kaons (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Lees, J P, Merle, E, ...

One-prong $\tau$ decays into final states involving kaons are studied with about 161k $\tau^+\tau^-$ events collected by the ALEPH detector from 1991 to 1995. Charged kaons are identified by dE/dx...

Search for charginos and neutralinos in $e^+ e^-$ collisions at centre-of-mass energies near 183 GeV and constraints on the MSSM parameter space (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

Searches for charginos and neutralinos are performed with the data collected by the ALEPH detector at LEP at centre-of-mass energies near 183 GeV. In these searches, it is assumed that R-parity is...

Search for charged Higgs bosons in $e^{+} e^{-}$ collisions at $\sqrt{s}$ = 181-184 GeV (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

Data collected at centre-of-mass energies of 181-184 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 56.9 pb^-1, are analysed in a search for pair-produced charged Higgs bosons H+-....

Search for invisible Higgs boson decays in $e^{+}e^{-}$ collisions at centre-of-mass energies up to 184 GeV (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, ...

In a data sample of 78.3 pb^-1 collected in 1996 and 1997 by the ALEPH detector at centre-of-mass energies from 161 to 184 GeV, invisible decays of a Higgs boson have been searched for in the...

Measurement of the e$^{+}$e$^{-} \rightarrow ZZ$ Production Cross Section at Centre-of-Mass Energies of 183 and 189 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

The e+e- -> ZZ cross section at sqrt(s)=182.7 and 188.6 GeV has been measured using the ALEPH detector. The analysis covers all of the visible ZZ final states and yields cross section measurements of...

Searches for sleptons and squarks in $e^+ e^-$ collisions at 189 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

The data collected at a centre-of-mass energy of 188.6 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 173.6 pb$^{-1}$, are analysed in a search for the scalar partners of quarks...

Search for charginos and neutralinos in $e^+ e^-$ collisions at centre-of-mass energies near 183 GeV and constraints on the MSSM parameter space (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

Searches for charginos and neutralinos are performed with the data collected by the ALEPH detector at LEP at centre-of-mass energies near 183 GeV. In these searches, it is assumed that R-parity is...

Search for an invisibly decaying Higgs boson in $e^{+}e^{-}$ collisions at 189 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

The data collected in 1998 by ALEPH at LEP at a centre-of-mass energy of 188.6 GeV, corresponding to an integrated luminosity of 176.2 pb-1, are analysed to search for invisible decays of a Higgs...

A direct measurement of $\mid V_{cs} \mid$ in hadronic W decays using a charm tag (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

The inclusive charm production rate in W decays is measured from a study of the properties of final state particles. The sample of W pairs is selected from 67.7 pb-1 collected by ALEPH in 1996 and...

A Study of Single W Production in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 161 - 183 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Single W production is studied in the data recorded with the ALEPH detector at LEP at centre-of-mass energies between 161 and 183 GeV. The cross section is measured to be sigma_W=0.41+-0.17 (stat)...

One-prong $\tau$ decays with kaons (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Merle, E., ...

One-prong $\tau$ decays into final states involving kaons are studied with about 161k $\tau^+\tau^-$ events collected by the ALEPH detector from 1991 to 1995. Charged kaons are identified by dE/dx...

Measurement of the hadronic photon structure function at LEP 1 for $\langle Q^{2} \rangle$ values between 9.9 and 284 GeV$^{2}$ (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Merle, E., ...

Inclusive gamma^*gamma interactions to hadronic final states where one scattered electron or positron is detected in the electromagnetic calorimeters have been studied in the LEP 1 data taken by...

Search for invisible Higgs boson decays in $e^{+}e^{-}$ collisions at centre-of-mass energies up to 184 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

In a data sample of 78.3 pb^-1 collected in 1996 and 1997 by the ALEPH detector at centre-of-mass energies from 161 to 184 GeV, invisible decays of a Higgs boson have been searched for in the...

Search for charged Higgs bosons in $e^{+} e^{-}$ collisions at $\sqrt{s}$ = 181-184 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Data collected at centre-of-mass energies of 181-184 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 56.9 pb^-1, are analysed in a search for pair-produced charged Higgs bosons H+-....

Measurement of the W mass in $e^+ e^-$ collisions at 183 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 57 pb$^{-1}$ collected with the ALEPH detector in 1997 at...

Search for Supersymmetry with a dominant R-Parity violating $LQ\overline{D}$ Coupling in $e^+ e^-$ Collisions at centre-of-mass energies of 130 GeV to 172 GeV (1999)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Jezequel, S., ...

A search for pair-production of supersymmetric particles under the assumption that R-parity is violated via a dominant LQDbar coupling has been performed using the data collected by ALEPH at...

Determination of $\mid V_{ub} \mid$ from the Measurement of the Inclusive Charmless Semileptonic Branching Ratio of b hadrons (1999)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

From a study of the kinematic properties of the final state produced in the semileptonic decays b-->X l nu, the inclusive charmless semileptonic branching ratio of b hadrons is measured. With a sam...

Search for charginos and neutralinos in $e^+ e^-$ collisions at centre-of-mass energies near 183 GeV and constraints on the MSSM parameter space (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

Searches for charginos and neutralinos are performed with the data collected by the ALEPH detector at LEP at centre-of-mass energies near 183 GeV. In these searches, it is assumed that R-parity is...

One-prong $\tau$ decays with kaons (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Merle, E., ...

One-prong $\tau$ decays into final states involving kaons are studied with about 161k $\tau^+\tau^-$ events collected by the ALEPH detector from 1991 to 1995. Charged kaons are identified by dE/dx...

Searches for sleptons and squarks in $e^+ e^-$ collisions at 189 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

The data collected at a centre-of-mass energy of 188.6 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 173.6 pb$^{-1}$, are analysed in a search for the scalar partners of quarks...

Measurement of the e$^{+}$e$^{-} \rightarrow ZZ$ Production Cross Section at Centre-of-Mass Energies of 183 and 189 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

The e+e- -> ZZ cross section at sqrt(s)=182.7 and 188.6 GeV has been measured using the ALEPH detector. The analysis covers all of the visible ZZ final states and yields cross section measurements of...

Measurement of the W mass in $e^+ e^-$ collisions at 183 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 57 pb$^{-1}$ collected with the ALEPH detector in 1997 at...

Determination of $\mid V_{ub} \mid$ from the Measurement of the Inclusive Charmless Semileptonic Branching Ratio of b hadrons (1999)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

From a study of the kinematic properties of the final state produced in the semileptonic decays b-->X l nu, the inclusive charmless semileptonic branching ratio of b hadrons is measured. With a sam...

Search for Supersymmetry with a dominant R-Parity violating $LQ\overline{D}$ Coupling in $e^+ e^-$ Collisions at centre-of-mass energies of 130 GeV to 172 GeV (1999)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Jezequel, S., ...

A search for pair-production of supersymmetric particles under the assumption that R-parity is violated via a dominant LQDbar coupling has been performed using the data collected by ALEPH at...

Search for charged Higgs bosons in $e^{+} e^{-}$ collisions at $\sqrt{s}$ = 181-184 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Data collected at centre-of-mass energies of 181-184 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 56.9 pb^-1, are analysed in a search for pair-produced charged Higgs bosons H+-....

Search for invisible Higgs boson decays in $e^{+}e^{-}$ collisions at centre-of-mass energies up to 184 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

In a data sample of 78.3 pb^-1 collected in 1996 and 1997 by the ALEPH detector at centre-of-mass energies from 161 to 184 GeV, invisible decays of a Higgs boson have been searched for in the...

Measurement of the hadronic photon structure function at LEP 1 for $\langle Q^{2} \rangle$ values between 9.9 and 284 GeV$^{2}$ (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Merle, E., ...

Inclusive gamma^*gamma interactions to hadronic final states where one scattered electron or positron is detected in the electromagnetic calorimeters have been studied in the LEP 1 data taken by...

A Study of Single W Production in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 161 - 183 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Single W production is studied in the data recorded with the ALEPH detector at LEP at centre-of-mass energies between 161 and 183 GeV. The cross section is measured to be sigma_W=0.41+-0.17 (stat)...

A direct measurement of $\mid V_{cs} \mid$ in hadronic W decays using a charm tag (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

The inclusive charm production rate in W decays is measured from a study of the properties of final state particles. The sample of W pairs is selected from 67.7 pb-1 collected by ALEPH in 1996 and...

Search for an invisibly decaying Higgs boson in $e^{+}e^{-}$ collisions at 189 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

The data collected in 1998 by ALEPH at LEP at a centre-of-mass energy of 188.6 GeV, corresponding to an integrated luminosity of 176.2 pb-1, are analysed to search for invisible decays of a Higgs...

Search for charginos and neutralinos in $e^+ e^-$ collisions at centre-of-mass energies near 183 GeV and constraints on the MSSM parameter space (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

Searches for charginos and neutralinos are performed with the data collected by the ALEPH detector at LEP at centre-of-mass energies near 183 GeV. In these searches, it is assumed that R-parity is...

One-prong $\tau$ decays with kaons (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Merle, E., ...

One-prong $\tau$ decays into final states involving kaons are studied with about 161k $\tau^+\tau^-$ events collected by the ALEPH detector from 1991 to 1995. Charged kaons are identified by dE/dx...

Searches for sleptons and squarks in $e^+ e^-$ collisions at 189 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

The data collected at a centre-of-mass energy of 188.6 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 173.6 pb$^{-1}$, are analysed in a search for the scalar partners of quarks...

Measurement of the e$^{+}$e$^{-} \rightarrow ZZ$ Production Cross Section at Centre-of-Mass Energies of 183 and 189 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

The e+e- -> ZZ cross section at sqrt(s)=182.7 and 188.6 GeV has been measured using the ALEPH detector. The analysis covers all of the visible ZZ final states and yields cross section measurements of...

Measurement of the W mass in $e^+ e^-$ collisions at 183 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.P., ...

The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 57 pb$^{-1}$ collected with the ALEPH detector in 1997 at...

Determination of $\mid V_{ub} \mid$ from the Measurement of the Inclusive Charmless Semileptonic Branching Ratio of b hadrons (1999)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

From a study of the kinematic properties of the final state produced in the semileptonic decays b-->X l nu, the inclusive charmless semileptonic branching ratio of b hadrons is measured. With a sam...

Search for Supersymmetry with a dominant R-Parity violating $LQ\overline{D}$ Coupling in $e^+ e^-$ Collisions at centre-of-mass energies of 130 GeV to 172 GeV (1999)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Jezequel, S., ...

A search for pair-production of supersymmetric particles under the assumption that R-parity is violated via a dominant LQDbar coupling has been performed using the data collected by ALEPH at...

Search for charged Higgs bosons in $e^{+} e^{-}$ collisions at $\sqrt{s}$ = 181-184 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Data collected at centre-of-mass energies of 181-184 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 56.9 pb^-1, are analysed in a search for pair-produced charged Higgs bosons H+-....

Search for invisible Higgs boson decays in $e^{+}e^{-}$ collisions at centre-of-mass energies up to 184 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

In a data sample of 78.3 pb^-1 collected in 1996 and 1997 by the ALEPH detector at centre-of-mass energies from 161 to 184 GeV, invisible decays of a Higgs boson have been searched for in the...

Measurement of the hadronic photon structure function at LEP 1 for $\langle Q^{2} \rangle$ values between 9.9 and 284 GeV$^{2}$ (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J P., Merle, E., ...

Inclusive gamma^*gamma interactions to hadronic final states where one scattered electron or positron is detected in the electromagnetic calorimeters have been studied in the LEP 1 data taken by...

A Study of Single W Production in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 161 - 183 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

Single W production is studied in the data recorded with the ALEPH detector at LEP at centre-of-mass energies between 161 and 183 GeV. The cross section is measured to be sigma_W=0.41+-0.17 (stat)...

A direct measurement of $\mid V_{cs} \mid$ in hadronic W decays using a charm tag (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

The inclusive charm production rate in W decays is measured from a study of the properties of final state particles. The sample of W pairs is selected from 67.7 pb-1 collected by ALEPH in 1996 and...

Search for an invisibly decaying Higgs boson in $e^{+}e^{-}$ collisions at 189 GeV (1999)

Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J P., ...

The data collected in 1998 by ALEPH at LEP at a centre-of-mass energy of 188.6 GeV, corresponding to an integrated luminosity of 176.2 pb-1, are analysed to search for invisible decays of a Higgs...

Analysis of transverse momentum correlations in hadronic Z decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

In a recent paper, evidence was presented for a significant,positive correlation between the total transverse momenta of particleson opposite hemispheres of hadronic events. A new, model...

Measurement of triple gauge WW$\gamma$ couplings at LEP2 using photonic events (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, ...

A study of events with photons and missing energy has been performed with the data sample obtained with the ALEPH detector at centre-of-mass energies from 161 to 184 GeV,corresponding to a total...

Searches for the neutral Higgs bosons of the MSSM in $e^+ e^-$ collisions at centre-of-mass energies of 181-184 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, ...

The data collected by ALEPH at LEP at centre-of-mass energies ranging from 181 to 184 GeV, corresponding to an integrated luminosity of 57 pb-1, are analysed to search for pair-produced neutral Higgs...

Search for Supersymmetry with a dominant R-Parity violating $LQ\overline{D}$ Coupling in $e^{+}e^{-}$ Collisions at centre-of-mass energies of 130 GeV to 172 GeV (1998)

Barate, R, Buskulic, D, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, ...

A search for pair-production of supersymmetric particles under the assumption that R-parity is violated via a dominant LQDbar coupling has been performed using the data collected by ALEPH at...

Search for the Standard Model Higgs boson at the LEP2 collider near $\sqrt{s}$ = 183 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, ...

During 1997 the ALEPH experiment at LEP gathered $57 \pb$ of data at centre-of-mass energies near $183 ~\G$. These data are used to look for possible signals from the production of the Standard Model...

Study of $D^{0}-\overline{D}^{0}$ mixing and $D^{0}$ doubly-Cabibbo-suppressed decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Using a sample of four million hadronic Z events collected in ALEPH from 1991 to 1995, the decays D^{*+} --> D^0 pi_{s}^+, with D^0 decaying to K^- pi^+ or to K^+ pi^-, are studied. The relative br...

Search for $B^{0}_{s}$ oscillations using inclusive lepton events (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for Bs oscillations is performed using a sample of semileptonic b-hadron decays collected by the ALEPH experiment during 1991-1995. Compared to previous inclusive lepton analyses, the prop...

The forward-backward asymmetry for charm quarks at the Z (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

From this analysis, a value of the effective electroweak mixing angle $\sin^2 \theta^{\mathrm eff}_W = 0.2321 \pm 0.0016$ is extracted.

A measurement of the gluon splitting rate into $b\overline{b}$ pairs in hadronic Z decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A measurement of the fraction of hadronic Z decays in which a gluon splits into a $b \bar{b}$ pair, \gbb, is presented using data collected by {\t extsc ALEPH} from 1992 to 1995 at the Z resonance....

Scalar quark searches in $e^+ e^-$ collisions at $\sqrt{s}$ = 181-184 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, ...

Searches for scalar top, scalar bottom and degenerate scalar quarks have been performed with data collected with the ALEPH detector at LEP. The data sample consists of 57~$\mathrm{pb}^{-1}$ taken at...

Search for sleptons in $e^+ e^-$ collisions at centre-of-mass energies up to 184 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, ...

The data collected by the ALEPH experiment at LEP at centre-of-mass energies around 183 GeV are analysed to search for sleptons, the partners of leptons in supersymmetric theories. The previously pu...

Determination of $|V_{ub}|$ from the measurement of the inclusive charmless semileptonic branching ratio of b hadrons (1998)

Barate, R, Abbaneo, D, Affholderbach, K, Ajaltouni, Ziad J, Alemany, R, Aleppo, M, ...

From a study of the kinematic properties of the final state produced in the semileptonic decays b-->X l nu, the inclusive charmless semileptonic branching ratio of b hadrons is measured. With a sam...

Single- and multi-photon production in $e^{+}e^{-}$ collisions at a centre-of-mass energy of 183 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, ...

The production of final states involving one or more energetic photons from e+e- collisions is studied in a sample of 58.5 pb-1 of data recorded at a centre-of-mass energy of 183 GeV by the ALEPH...

A measurement of the inclusive $b \rightarrow s \gamma$ branching ratio (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The flavour changing neutral current decay b -> s gamma has been detected in hadronic Z decays collected by ALEPH at LEP. The signal is isolated in lifetime-tagged b-bbar events by the presence of a...

Determination of $A^{b}_{FB}$ using Jet Charge Measurements in Z Decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

An improved measurement of the forward-backward asymmetry in Z-> b b-bar decays is presented, based on a sample of 4.1 million hadronic Z decays collected by Aleph between 1991 and 1995. Data are a...

Observation of doubly-charmed B decays at LEP (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for doubly-charmed B decays with both charmed mesons reconstructed is performed, using about 3.8 million hadronic Z decays recorded with the ALEPH detector at LEP. A clear signal is observed...

Search for evidence of compositeness at LEP I (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Extensive searches for evidence of compositeness of quarks and leptons have been made using the full set of ALEPH data from LEP running at the Z peak. They include searches for radiative and weak...

Measurement of the W mass by direct reconstruction in $e^+ e^-$ collisions at 172 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 10.65~pb$^{-1}$ collected with the ALEPH detector at a...

Measurement of triple gauge-boson couplings at 172 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The triple gauge-boson couplings, Awp, Aw and Abp, have been measured using 34 semileptonically and 54 hadronically decaying WW candidate events. The events were selected in the data recorded during...

$K^{0}_{S}$ production in $\tau$ decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

From a sample of about 160k $\mbox{Z}\!\!\to\!\!\tau^+\tau^-$ candidates collected with the ALEPH detector at LEP between 1991 and 1995, $\tau$ lepton decays involving $K^0_S\!\to\!\pi^+\pi^-$ are...

Measurements of the structure of quark and gluon jets in hadronic Z decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

An experimental investigation of the structure of identified quark and gluon jets is presented. Observables related to both the global and internal structure of jets are measured; this allows for...

Resonant structure and flavour tagging in the $B\pi^{\pm}$ system using fully reconstructed $B$ decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Starting from a sample of four million hadronic $Z$ decays collected with the ALEPH detector at LEP, 404 charged and neutral $B$ mesons are fully reconstructed and used to look for resonant structure...

Measurement of the spectral functions of axial-vector hadronic $\tau$ decays and determination of $\alpha_{s}(M^2_\tau)$ (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

An analysis based on 124000 selected tau pairs recorded by the ALEPH detector at LEP provides the vector (V) and axial-vector (A) spectral functions of hadronic tau decays together with their total...

Evaluation of Fermi Read-out of the ATLAS Tilecal Prototype (1998)

Agnvall, S, Ajaltouni, Ziad J, Albiol, F, Alifanov, A, Amaral, P, Amelin, D V, ...

Prototypes of the \fermi{} system have been used to read out a prototype of the \atlas{} hadron calorimeter in a beam test at the CERN SPS. The \fermi{} read-out system, using a compressor and a 40...

Study of $B^0_s$ oscillations and lifetime using fully reconstructed $D^-_s$ decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for B0s oscillations is performed using approximately 4 million Z --> qqbar events collected by the ALEPH experiment during 1991-1995. B0s candidates are partially reconstructed by combining...

Four-jet final state production in $e^+ e^-$ collisions at centre-of-mass energies ranging from 130 to 184 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The four jet topology is analysed in the ALEPH data taken between November 1995 and November 1997, at centre-of-mass energies ranging from 130 to 184 GeV. While an unexpected accumulation of events...

A measurement of the semileptonic branching ratio BR(b-baryon $\rightarrow p l\overline{\nu}X$) and a study of inclusive $\pi^{\pm}$, $K^{\pm}$, ($p,\overline{p}$) production in Z decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Inclusive pi^+/-, K^+/- (p,pbar) production is investigated using data recorded by the ALEPH detector between 1992 and 1994. The momentum spectra and multiplicities are measured separately in Z...

Evaluation of FERMI read-out of the ATLAS tilecal prototype (1998)

Ajaltouni, Z., Albiol, F., Alifanov, A., Amaral, P., Amelin, D., Amorim, A., ...

Prototypes of the FERMI system have been used to read out a prototype of the ATLAS hadron calorimeter in a beam test at the CERN SPS. The FERMI read-out system, using a compressor and a 40 MHz...

Searches for Charginos and Neutralinos in $e^+ e^-$ Collisions at $\sqrt{s}$ = 161 and 172 GeV (1998)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J.P., ...

The data recorded by the ALEPH detector at centre-of-mass energies of 161, 170, and 172 GeV are analysed for signals of chargino and neutralino production. No evidence of a signal is found, although...

Search for supersymmetry in the photon(s) plus missing energy channels at $\sqrt{s}$=161 GeV and 172 GeV (1998)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J.P., ...

Searches for supersymmetric particles in channels with one or more photons and missing energy have been performed with data collected by the ALEPH detector at LEP. The data consist of 11.1 \pb\ at...

Four-jet final state production in $e^+ e^-$ collisions at centre-of-mass energies ranging from 130 to 184 GeV (1998)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The four jet topology is analysed in the ALEPH data taken between November 1995 and November 1997, at centre-of-mass energies ranging from 130 to 184 GeV. While an unexpected accumulation of events...

Measurement of the W mass by direct reconstruction in $e^+ e^-$ collisions at 172 GeV (1998)

Barate, R., Jezequel, S., Buskulic, D., Decamp, D., Ghez, P., Goy, C., ...

The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 10.65~pb$^{-1}$ collected with the ALEPH detector at a...

Measurement of triple gauge-boson couplings at 172 GeV (1998)

Barate, R., Jezequel, S., Buskulic, D., Decamp, D., Ghez, P., Goy, C., ...

The triple gauge-boson couplings, Awp, Aw and Abp, have been measured using 34 semileptonically and 54 hadronically decaying WW candidate events. The events were selected in the data recorded during...

$K^{0}_{S}$ production in $\tau$ decays (1998)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

From a sample of about 160k $\mbox{Z}\!\!\to\!\!\tau^+\tau^-$ candidates collected with the ALEPH detector at LEP between 1991 and 1995, $\tau$ lepton decays involving $K^0_S\!\to\!\pi^+\pi^-$ are...

Measurement of triple gauge-boson couplings at 172 GeV (1998)

Barate, R., Jezequel, S., Buskulic, D., Decamp, D., Ghez, P., Goy, C., ...

The triple gauge-boson couplings, Awp, Aw and Abp, have been measured using 34 semileptonically and 54 hadronically decaying WW candidate events. The events were selected in the data recorded during...

$K^{0}_{S}$ production in $\tau$ decays (1998)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

From a sample of about 160k $\mbox{Z}\!\!\to\!\!\tau^+\tau^-$ candidates collected with the ALEPH detector at LEP between 1991 and 1995, $\tau$ lepton decays involving $K^0_S\!\to\!\pi^+\pi^-$ are...

Measurement of the W mass by direct reconstruction in $e^+ e^-$ collisions at 172 GeV (1998)

Barate, R., Jezequel, S., Buskulic, D., Decamp, D., Ghez, P., Goy, C., ...

The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 10.65~pb$^{-1}$ collected with the ALEPH detector at a...

Four-jet final state production in $e^+ e^-$ collisions at centre-of-mass energies ranging from 130 to 184 GeV (1998)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The four jet topology is analysed in the ALEPH data taken between November 1995 and November 1997, at centre-of-mass energies ranging from 130 to 184 GeV. While an unexpected accumulation of events...

Searches for Charginos and Neutralinos in $e^+ e^-$ Collisions at $\sqrt{s}$ = 161 and 172 GeV (1998)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J.P., ...

The data recorded by the ALEPH detector at centre-of-mass energies of 161, 170, and 172 GeV are analysed for signals of chargino and neutralino production. No evidence of a signal is found, although...

Evaluation of FERMI read-out of the ATLAS tilecal prototype (1998)

Ajaltouni, Z., Albiol, F., Alifanov, A., Amaral, P., Amelin, D., Amorim, A., ...

Prototypes of the FERMI system have been used to read out a prototype of the ATLAS hadron calorimeter in a beam test at the CERN SPS. The FERMI read-out system, using a compressor and a 40 MHz...

Search for supersymmetry in the photon(s) plus missing energy channels at $\sqrt{s}$=161 GeV and 172 GeV (1998)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J.P., ...

Searches for supersymmetric particles in channels with one or more photons and missing energy have been performed with data collected by the ALEPH detector at LEP. The data consist of 11.1 \pb\ at...

Measurement of triple gauge-boson couplings at 172 GeV (1998)

Barate, R., Jezequel, S., Buskulic, D., Decamp, D., Ghez, P., Goy, C., ...

The triple gauge-boson couplings, Awp, Aw and Abp, have been measured using 34 semileptonically and 54 hadronically decaying WW candidate events. The events were selected in the data recorded during...

$K^{0}_{S}$ production in $\tau$ decays (1998)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

From a sample of about 160k $\mbox{Z}\!\!\to\!\!\tau^+\tau^-$ candidates collected with the ALEPH detector at LEP between 1991 and 1995, $\tau$ lepton decays involving $K^0_S\!\to\!\pi^+\pi^-$ are...

Measurement of the W mass by direct reconstruction in $e^+ e^-$ collisions at 172 GeV (1998)

Barate, R., Jezequel, S., Buskulic, D., Decamp, D., Ghez, P., Goy, C., ...

The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 10.65~pb$^{-1}$ collected with the ALEPH detector at a...

Four-jet final state production in $e^+ e^-$ collisions at centre-of-mass energies ranging from 130 to 184 GeV (1998)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The four jet topology is analysed in the ALEPH data taken between November 1995 and November 1997, at centre-of-mass energies ranging from 130 to 184 GeV. While an unexpected accumulation of events...

Searches for Charginos and Neutralinos in $e^+ e^-$ Collisions at $\sqrt{s}$ = 161 and 172 GeV (1998)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J.P., ...

The data recorded by the ALEPH detector at centre-of-mass energies of 161, 170, and 172 GeV are analysed for signals of chargino and neutralino production. No evidence of a signal is found, although...

Evaluation of FERMI read-out of the ATLAS tilecal prototype (1998)

Ajaltouni, Z., Albiol, F., Alifanov, A., Amaral, P., Amelin, D., Amorim, A., ...

Prototypes of the FERMI system have been used to read out a prototype of the ATLAS hadron calorimeter in a beam test at the CERN SPS. The FERMI read-out system, using a compressor and a 40 MHz...

Search for supersymmetry in the photon(s) plus missing energy channels at $\sqrt{s}$=161 GeV and 172 GeV (1998)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J.P., ...

Searches for supersymmetric particles in channels with one or more photons and missing energy have been performed with data collected by the ALEPH detector at LEP. The data consist of 11.1 \pb\ at...

Search for supersymmetry with a dominant R-parity violating $LL\overline{E}$ coupling in $e^+ e^-$ collisions at centre-of-mass energies of 130 GeV to 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for pair-production of supersymmetric particles under the assumption that R-parity is violated via a dominant LLE coupling has been performed using the data collected by ALEPH at...

An upper limit on the $\tau$ neutrino mass from three- and five-prong tau decays (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A bound on the tau neutrino mass is established using the data collected from 1991 to 1995 at Ecm = M(Z) with the ALEPH detector. Two separate limits are derived by fitting the distribution of...

Searches for charginos and neutralinos in $e^+ e^-$ collisions at $\sqrt{s}$ = 161 and 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The data recorded by the ALEPH detector at centre-of-mass energies of 161, 170, and 172 GeV are analysed for signals of chargino and neutralino production. No evidence of a signal is found, although...

Search for charged Higgs bosons in $e^+ e^-$ collisions at centre-of-mass energies from 130 to 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The data collected at centre-of-mass energies ranging from 130 to 172 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 27.5 pb-1, are analysed in a search for pair-produced charged...

Searches for supersymmetry in the photon(s) plus missing energy channels at $\sqrt{s}$ = 161 GeV and 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Searches for supersymmetric particles in channels with one or more photons and missing energy have been performed with data collected by the ALEPH detector at LEP. The data consist of 11.1 \pb\ at...

Measurement of the b baryon lifetime and branching fractions in Z decays (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Using approximately 4 million hadronic Z decays recorded with the Aleph detector from 1991 through 1995, the lifetime of the b baryon is measured with three independent methods. From the impact...

Updated measurement of the $\tau$ lepton lifetime (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A new measurement of the mean lifetime of the tau lepton is presented. Three different analysis methods are applied to a sample of 90000 tau pairs, collected in 1993 and 1994 with the ALEPH detector...

Measurement of the W-pair cross section in $e^+ e^-$ collisions at 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The e+e- --> W+W- cross section is measured in a data sample collected by ALEPH at a mean centre--of--mass energy of 172.09 GEV, corresponding to an integrated luminosity of 10.65 pb-1. Cross...

Searches for scalar top and scalar bottom quarks at LEP2 (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Searches for scalar top and bottom quarks have been performed with data collected by the ALEPH detector at LEP. The data sample consists of 21.7 pb^-1 taken at sqrt{s} = 161, 170, and 172~GeV and 5.7...

Search for the neutral Higgs bosons of the MSSM in $e^+ e^-$ collisions at $\sqrt{s}$ from 130 to 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The process e+e- --> h A is used to search for the Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM), in the bbbb and tautaubb final states. The search is performed in the data...

Three-prong $\tau$ decays with charged kaons (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Final states with charged kaons in three-prong $\tau$ decays are studied by exploiting the particle identification from the dE/dx measurement. The results are based on a sample of about $1.6\times...

Search for the standard model Higgs boson in $e^+ e^-$ collisions at $\sqrt{s}$=161, 170 and 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The reaction e+e- -> HZ is used to search for the Standard Model Higgs boson. The data sample consists of integrated luminosities of 10.9pb-1 1.1pb-1 and 9.5pb-1 collected by the ALEPH experiment at...

Search for sleptons in $e^+ e^-$ collisions at centre-of-mass energies of 161 GeV and 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The data recorded by the ALEPH experiment at LEP at centre-of-mass energies of 161 GeV and 172 GeV were analysed to search for sleptons, the supersymmetric partners of leptons. No evidence for the...

Measurement of the transverse spin correlations in the decay $Z \rightarrow \tau^+\tau^-$ (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

For tau leptons produced in e^+e^- -> tau^+ tau^- interactions there are, in addition to the longitudinal spin correlations, two independent transverse spin correlations associated with the...

Search for pair-production of long-lived heavy charged particles in $e^+ e^-$ annihilation (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for pair-production of long-lived, heavy, singly-charged particles has been performed with data collected by the ALEPH detector at a centre-of-mass energy of 172 GeV. Data at \sqrt{s} = 161,...

Search for the $B_{c}$ meson in hadronic Z decays (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for the Bc meson decaying into the channels J/psi pi+ and J/psi l nu (l = e or mu) is performed in a sample of 3.9 million hadronic Z decays collected by the ALEPH detector. This search...

Measurement of the branching fraction for $D^{0} \rightarrow K^{-}\pi^{+}$ (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The branching fraction for D0 -> K- pi+ is measured with the statistics collected by ALEPH from 1991 to 1994. The method is based on the comparison between the rate for the reconstructed D*+ -> D0...

Measurement of the W mass in $e^{+}e^{-}$ collisions at production threshold (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

In June 1996, the LEP centre-of-mass energy was raised to 161 GeV. Pair production of W bosons in e+e- collisions was observed for the first time by the LEP experiments. An integrated luminosity of...

A Measurement of $R_b$ using a Lifetime-Mass Tag (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

ALEPH's published measurement of $R_b$ using a lifetime tag, is updated using the full LEP~1 data sample. Considerable effort has been devoted to understanding systematic effects. Charm background is...

A Measurement of $R_b$ using Mutually Exclusive Tags (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A measurement of $R_b$ using five mutually exclusive hemisphere tags has been pe rformed by ALEPH using the full LEP1 statistics. Three tags are designed to sele ct the decay of the $Z^0$ to $b$...

Measurement of the spectral functions of vector current hadronic $\tau$ decays (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A measurement of the spectral functions of non-strange tau vector current final states is presented, using 124,358 tau pairs recorded by the ALEPH detector at LEP during the years 1991 to 1994. The...

Measurement of the $\tau$ Lepton Lifetime with the Three-dimensional Impact Parameter Method (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A new method is presented for the measurement of the mean $\tau$ lepton lifetime using events in which $\tau$'s are pair-produced and both $\tau$'s decay to hadrons and $\nu_\tau$. Based on the...

Study of the muon-pair production at centre-of-mass energies from 20 to 136 GeV with the ALEPH detector (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The total cross section and the forward-backward asymmetry for the process $e^+ e^- \rightarrow \mu^+ \mu^- (n \gamma)$ are measured in the energy range 20-136 GeV by reconstructing the effective...

A measurement of the QCD colour factors and a limit on the light gluino (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Using data collected from 1992 to 1995 with the ALEPH detector at LEP, a measurement of the colour factor ratios CA/CF and TF/CF and the strong coupling constant $\overline{\alpha}_s = CF...

The topology dependence of charged particle multiplicities in three-jet events (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A study of individual jet and whole-event charged particle multiplicities in three-jet events measured in e+e- annihilation at the Z reveals a significant topology dependence. Mean jet multiplicities...

Studies of quantum chromodynamics with the ALEPH detector (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Previously published and as yet unpublished QCD results obtained with the ALEPH detector at LEP1 are presented. The unprecedented statistics allows detailed studies of both perturbative and...

Improved measurement of the $B^0_d$--$\overline{B}^0_d$ Oscillation frequency (1997)

Buskulic, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The time dependence of $B^0_d--\bar{B}^0_d$ oscillations is measured by the ALEPH experiment at LEP, using three techniques, two of which are updates of previous measurements. In all cases the charge...

Measurement of the transverse spin correlations in the decay $Z \rightarrow \tau^+\tau^-$ (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

For tau leptons produced in e^+e^- -> tau^+ tau^- interactions there are, in addition to the longitudinal spin correlations, two independent transverse spin correlations associated with the...

Response of the ATLAS tile calorimeter prototype to muons (1997)

Ajaltouni, Z., Albiol, F., Alifanov, A., Amaral, P., Amorim, A., Anderson, K.J., ...

A study of high energy muons traversing the ATLAS hadron Tile calorimeter in the barrel region in the energy range between 10 and 300~GeV is presented. Both test beam experimental data and Monte...

Production of orbitally excited charm mesons in semileptonic B decays (1997)

Buskulic, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J.P., ...

A sample of 3.6 million hadronic Z decays recorded between 1991 and 1995 with the ALEPH detector at LEP is used to investigate semileptonic decays of B mesons into final states involving orbitally...

A measurement of the energy loss spectrum of 150 GeV muons in iron (1997)

Berger, E., Blair, R., Dawson, J., Fuess, T., Guarino, V., Hill, N., ...

The energy loss spectrum of 150 GeV muons has been measured with a prototype of the ATLAS hadron calorimeter in the H8 beam of the CERN SPS. The differential probability ${\rm {d}}P/{\rm {d}}v$ per...

Transverse momentum correlations in hadronic Z decays (1997)

Buskulic, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

Using data obtained with the ALEPH detector at the Z resonance, a measure based on transverse momentum is shown to exhibit a correlation between the two halves of a hadronic event which cannot be...

Study of muon-pair production at centre-of-mass energies from 20 to 136 GeV with the Aleph detector (1997)

Decamp, D., Ghez, P., Goy, C., Lees, J.P., Lucotte, A., Minard, M.N., ...

The total cross section and the forward-backward asymmetry for the process $e^+ e^- \rightarrow \mu^+ \mu^- (n \gamma)$ are measured in the energy range 20-136 GeV by reconstructing the effective...

Search for the $b_c$ meson in hadronic Z decays (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A search for the Bc meson decaying into the channels J/psi pi+ and J/psi l nu (l = e or mu) is performed in a sample of 3.9 million hadronic Z decays collected by the ALEPH detector. This search...

Results from a combined test of an electromagnetic liquid argon calorimeter with a hadronic scintillating-tile calorimeter (1997)

Ajaltouni, Z., Tisserand, V., Jezequel, S., Albiol, F., Alifanov, A., Amaral, P., ...

The first combined test of an electromagnetic liquid argon accordion calorimeter and a hadronic scintillating-tile calorimeter was carried out at the CERN SPS. These devices are prototypes of the...

Measurement of the W mass in $e^+e^-$ collisions at production threshold (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

In June 1996, the LEP centre-of-mass energy was raised to 161 GeV. Pair production of W bosons in e+e- collisions was observed for the first time by the LEP experiments. An integrated luminosity of...

Measurement of the branching fraction for $d^0 \rightarrow K^-\pi^+$ (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The branching fraction for D0 -> K- pi+ is measured with the statistics collected by ALEPH from 1991 to 1994. The method is based on the comparison between the rate for the reconstructed D*+ -> D0...

Inclusive production of neutral pions in hadronic Z decays (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A measurement of the inclusive production of pi0 mesons in hadronic Z decays is presented and compared to Monte Carlo model predictions. The analysis is based on approximately 2 million hadronic...

A study of tau decays involving eta and omega mesons (1997)

Buskulic, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The 132 pb$^{-1}$ of data collected by ALEPH from 1991 to 1994 have been used to analyze $\eta$ and $\omega$ production in $\tau$ decays. The following branching fractions have been measured:...

Search for the neutral Higgs bosons of the MSSM in $e^+ e^-$ collisions at $\sqrt{s}$ from 130 to 172 GeV (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The process e+e- --> h A is used to search for the Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM), in the bbbb and tautaubb final states. The search is performed in the data...

Measurement of the W-pair cross section in $e^+ e^-$ collisions at 172 GeV (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The e+e- --> W+W- cross section is measured in a data sample collected by ALEPH at a mean centre--of--mass energy of 172.09 GEV, corresponding to an integrated luminosity of 10.65 pb-1. Cross...

Measurement of the tau lepton lifetime with the three-dimensional impact parameter method. (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A new method is presented for the measurement of the mean $\tau$ lepton lifetime using events in which $\tau$'s are pair-produced and both $\tau$'s decay to hadrons and $\nu_\tau$. Based on the...

Study of muon-pair production at centre-of-mass energies from 20 to 136 GeV with the Aleph detector (1997)

Decamp, D., Ghez, P., Goy, C., Lees, J.P., Lucotte, A., Minard, M.N., ...

The total cross section and the forward-backward asymmetry for the process $e^+ e^- \rightarrow \mu^+ \mu^- (n \gamma)$ are measured in the energy range 20-136 GeV by reconstructing the effective...

Measurement of the tau lepton lifetime with the three-dimensional impact parameter method. (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A new method is presented for the measurement of the mean $\tau$ lepton lifetime using events in which $\tau$'s are pair-produced and both $\tau$'s decay to hadrons and $\nu_\tau$. Based on the...

Measurement of the W-pair cross section in $e^+ e^-$ collisions at 172 GeV (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The e+e- --> W+W- cross section is measured in a data sample collected by ALEPH at a mean centre--of--mass energy of 172.09 GEV, corresponding to an integrated luminosity of 10.65 pb-1. Cross...

Search for the neutral Higgs bosons of the MSSM in $e^+ e^-$ collisions at $\sqrt{s}$ from 130 to 172 GeV (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The process e+e- --> h A is used to search for the Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM), in the bbbb and tautaubb final states. The search is performed in the data...

A study of tau decays involving eta and omega mesons (1997)

Buskulic, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The 132 pb$^{-1}$ of data collected by ALEPH from 1991 to 1994 have been used to analyze $\eta$ and $\omega$ production in $\tau$ decays. The following branching fractions have been measured:...

Inclusive production of neutral pions in hadronic Z decays (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A measurement of the inclusive production of pi0 mesons in hadronic Z decays is presented and compared to Monte Carlo model predictions. The analysis is based on approximately 2 million hadronic...

Measurement of the branching fraction for $d^0 \rightarrow K^-\pi^+$ (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The branching fraction for D0 -> K- pi+ is measured with the statistics collected by ALEPH from 1991 to 1994. The method is based on the comparison between the rate for the reconstructed D*+ -> D0...

Measurement of the W mass in $e^+e^-$ collisions at production threshold (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

In June 1996, the LEP centre-of-mass energy was raised to 161 GeV. Pair production of W bosons in e+e- collisions was observed for the first time by the LEP experiments. An integrated luminosity of...

Search for the $b_c$ meson in hadronic Z decays (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A search for the Bc meson decaying into the channels J/psi pi+ and J/psi l nu (l = e or mu) is performed in a sample of 3.9 million hadronic Z decays collected by the ALEPH detector. This search...

Transverse momentum correlations in hadronic Z decays (1997)

Buskulic, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

Using data obtained with the ALEPH detector at the Z resonance, a measure based on transverse momentum is shown to exhibit a correlation between the two halves of a hadronic event which cannot be...

Measurement of the transverse spin correlations in the decay $Z \rightarrow \tau^+\tau^-$ (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

For tau leptons produced in e^+e^- -> tau^+ tau^- interactions there are, in addition to the longitudinal spin correlations, two independent transverse spin correlations associated with the...

Improved measurement of the $B^0_d$--$\overline{B}^0_d$ Oscillation frequency (1997)

Buskulic, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The time dependence of $B^0_d--\bar{B}^0_d$ oscillations is measured by the ALEPH experiment at LEP, using three techniques, two of which are updates of previous measurements. In all cases the charge...

Results from a combined test of an electromagnetic liquid argon calorimeter with a hadronic scintillating-tile calorimeter (1997)

Ajaltouni, Z., Tisserand, V., Jezequel, S., Albiol, F., Alifanov, A., Amaral, P., ...

The first combined test of an electromagnetic liquid argon accordion calorimeter and a hadronic scintillating-tile calorimeter was carried out at the CERN SPS. These devices are prototypes of the...

Response of the ATLAS tile calorimeter prototype to muons (1997)

Ajaltouni, Z., Albiol, F., Alifanov, A., Amaral, P., Amorim, A., Anderson, K.J., ...

A study of high energy muons traversing the ATLAS hadron Tile calorimeter in the barrel region in the energy range between 10 and 300~GeV is presented. Both test beam experimental data and Monte...

Production of orbitally excited charm mesons in semileptonic B decays (1997)

Buskulic, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J.P., ...

A sample of 3.6 million hadronic Z decays recorded between 1991 and 1995 with the ALEPH detector at LEP is used to investigate semileptonic decays of B mesons into final states involving orbitally...

A measurement of the energy loss spectrum of 150 GeV muons in iron (1997)

Berger, E., Blair, R., Dawson, J., Fuess, T., Guarino, V., Hill, N., ...

The energy loss spectrum of 150 GeV muons has been measured with a prototype of the ATLAS hadron calorimeter in the H8 beam of the CERN SPS. The differential probability ${\rm {d}}P/{\rm {d}}v$ per...

Study of muon-pair production at centre-of-mass energies from 20 to 136 GeV with the Aleph detector (1997)

Decamp, D., Ghez, P., Goy, C., Lees, J.P., Lucotte, A., Minard, M.N., ...

The total cross section and the forward-backward asymmetry for the process $e^+ e^- \rightarrow \mu^+ \mu^- (n \gamma)$ are measured in the energy range 20-136 GeV by reconstructing the effective...

Measurement of the tau lepton lifetime with the three-dimensional impact parameter method. (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A new method is presented for the measurement of the mean $\tau$ lepton lifetime using events in which $\tau$'s are pair-produced and both $\tau$'s decay to hadrons and $\nu_\tau$. Based on the...

Measurement of the W-pair cross section in $e^+ e^-$ collisions at 172 GeV (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The e+e- --> W+W- cross section is measured in a data sample collected by ALEPH at a mean centre--of--mass energy of 172.09 GEV, corresponding to an integrated luminosity of 10.65 pb-1. Cross...

Search for the neutral Higgs bosons of the MSSM in $e^+ e^-$ collisions at $\sqrt{s}$ from 130 to 172 GeV (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The process e+e- --> h A is used to search for the Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM), in the bbbb and tautaubb final states. The search is performed in the data...

A study of tau decays involving eta and omega mesons (1997)

Buskulic, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The 132 pb$^{-1}$ of data collected by ALEPH from 1991 to 1994 have been used to analyze $\eta$ and $\omega$ production in $\tau$ decays. The following branching fractions have been measured:...

Inclusive production of neutral pions in hadronic Z decays (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A measurement of the inclusive production of pi0 mesons in hadronic Z decays is presented and compared to Monte Carlo model predictions. The analysis is based on approximately 2 million hadronic...

Measurement of the branching fraction for $d^0 \rightarrow K^-\pi^+$ (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The branching fraction for D0 -> K- pi+ is measured with the statistics collected by ALEPH from 1991 to 1994. The method is based on the comparison between the rate for the reconstructed D*+ -> D0...

Measurement of the W mass in $e^+e^-$ collisions at production threshold (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

In June 1996, the LEP centre-of-mass energy was raised to 161 GeV. Pair production of W bosons in e+e- collisions was observed for the first time by the LEP experiments. An integrated luminosity of...

Search for the $b_c$ meson in hadronic Z decays (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

A search for the Bc meson decaying into the channels J/psi pi+ and J/psi l nu (l = e or mu) is performed in a sample of 3.9 million hadronic Z decays collected by the ALEPH detector. This search...

Transverse momentum correlations in hadronic Z decays (1997)

Buskulic, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

Using data obtained with the ALEPH detector at the Z resonance, a measure based on transverse momentum is shown to exhibit a correlation between the two halves of a hadronic event which cannot be...

Measurement of the transverse spin correlations in the decay $Z \rightarrow \tau^+\tau^-$ (1997)

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

For tau leptons produced in e^+e^- -> tau^+ tau^- interactions there are, in addition to the longitudinal spin correlations, two independent transverse spin correlations associated with the...

Improved measurement of the $B^0_d$--$\overline{B}^0_d$ Oscillation frequency (1997)

Buskulic, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J P., ...

The time dependence of $B^0_d--\bar{B}^0_d$ oscillations is measured by the ALEPH experiment at LEP, using three techniques, two of which are updates of previous measurements. In all cases the charge...

Results from a combined test of an electromagnetic liquid argon calorimeter with a hadronic scintillating-tile calorimeter (1997)

Ajaltouni, Z., Tisserand, V., Jezequel, S., Albiol, F., Alifanov, A., Amaral, P., ...

The first combined test of an electromagnetic liquid argon accordion calorimeter and a hadronic scintillating-tile calorimeter was carried out at the CERN SPS. These devices are prototypes of the...

Response of the ATLAS tile calorimeter prototype to muons (1997)

Ajaltouni, Z., Albiol, F., Alifanov, A., Amaral, P., Amorim, A., Anderson, K.J., ...

A study of high energy muons traversing the ATLAS hadron Tile calorimeter in the barrel region in the energy range between 10 and 300~GeV is presented. Both test beam experimental data and Monte...

Production of orbitally excited charm mesons in semileptonic B decays (1997)

Buskulic, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J.P., ...

A sample of 3.6 million hadronic Z decays recorded between 1991 and 1995 with the ALEPH detector at LEP is used to investigate semileptonic decays of B mesons into final states involving orbitally...

A measurement of the energy loss spectrum of 150 GeV muons in iron (1997)

Berger, E., Blair, R., Dawson, J., Fuess, T., Guarino, V., Hill, N., ...

The energy loss spectrum of 150 GeV muons has been measured with a prototype of the ATLAS hadron calorimeter in the H8 beam of the CERN SPS. The differential probability ${\rm {d}}P/{\rm {d}}v$ per...

Response of the ATLAS tile calorimeter prototype to muons (1996)

Ajaltouni, Ziad J, Albiol, F, Alifanov, A, Amaral, P, Amorim, A, Anderson, K J, ...

A study of high energy muons traversing the ATLAS hadron Tile calorimeter in the barrel region in the energy range between 10 and 300~GeV is presented. Both test beam experimental data and Monte...

Results from a combined test of an electromagnetic liquid argon calorimeter with a hadronic scintillating-tile calorimeter (1996)

Ajaltouni, Ziad J, Albiol, F, Alifanov, A, Amaral, P, Ambrosini, G, Amorim, A, ...

The first combined test of an electromagnetic liquid argon accordion calorimeter and a hadronic scintillating-tile calorimeter was carried out at the CERN SPS. These devices are prototypes of the...

Inclusive Production of Neutral Pions in Hadronic Z Decays (1996)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A measurement of the inclusive production of pi0 mesons in hadronic Z decays is presented and compared to Monte Carlo model predictions. The analysis is based on approximately 2 million hadronic...

Measurement of $|V_{cb}|$, form factors and branching fractions in the decays $\overline{B}^0 \to D^{*+}l^- \overline{\nu}_l$ and $\overline{B}^0 \to D^{+}l^{-}\overline{\nu}_l$ (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Two samples of exclusive semileptonic decays, 579 B0->D*+l-nu events and 261 B0->D+l-nu events, are selected from approximately 3.9 million hadronic Z decays collected by the ALEPH detector at LEP....

A measurement of the energy loss spectrum of 150 GeV muons in iron (1996)

Berger, E, Blair, R, Dawson, J, Fuess, T A, Guarino, V, Hill, N, ...

The energy loss spectrum of 150 GeV muons has been measured with a prototype of the ATLAS hadron calorimeter in the H8 beam of the CERN SPS.\\ The differential probability $dP/dv$ per radiation...

Charm counting in b decays (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The inclusive production of charmed particles in Z -> bb decays has been measured from the yield of D^0, D^+, D^+_s and Lambda_{c}^+ decays in a sample of qq events with high b purity collected with...

Improved measurement of the $B^0_d$--$\overline{B}^0_d$ Oscillation frequency (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The time dependence of $B^0_d--\bar{B}^0_d$ oscillations is measured by the ALEPH experiment at LEP, using three techniques, two of which are updates of previous measurements. In all cases the charge...

A study of tau decays involving eta and omega mesons (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The 132 pb$^{-1}$ of data collected by ALEPH from 1991 to 1994 have been used to analyze $\eta$ and $\omega$ production in $\tau$ decays. The following branching fractions have been measured:...

Observation of charmless hadronic B decays (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Four candidates for charmless hadronic B decay are observed in a data sample of four million hadronic Z decays recorded by the {\sc aleph} detector at {\sc lep} . The probability that these events...

Transverse Momentum Correlations in Hadronic Z decays (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Using data obtained with the ALEPH detector at the Z resonance, a measure based on transverse momentum is shown to exhibit a correlation between the two halves of a hadronic event which cannot be...

Search for Excited Leptons at 130 - 140 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for the radiative decay of excited charged leptons, $\ls$, and for radiative and weak decays of excited electron neutrinos, $\nu_e^*$, is performed, using the 5.8~$\ipb$ of data collected by...

Four fermion production in $e^+ e^-$ collisions at centre-of-mass energies of 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Four-fermion events have been selected in a data sample of 5.8 pb**-1 collected with the ALEPH detector at centre-of-mass energies of 130 and 136 GeV. The final states l^+l^- qqbar, l^+l^-l^+l^-,...

Search for charginos and neutralinos with R-parity violation at $\sqrt{s}$ = 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Searches for charginos and neutralinos produced in e+e- collisions at centre-of-mass energies of 130 and 136 GeV have been performed under the assumptions that R-parity is not conserved, that the...

Mass limit for the lightest neutralino (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Indirect limits on the mass of the lightest neutralino are derived from the results of searches for charginos, neutralinos, and sleptons performed with data taken by the ALEPH Collaboration at...

Strange b baryon production and lifetime in Z decays (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

In a data sample of approximately four million hadronic Z decays recorded with the ALEPH detector from 1990 to 1995, a search for the strange b baryon Xi_b is performed with a study of Xi-lepton...

Search for heavy lepton pair production in e+e- collisions at centre-of-mass energies of 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for pair production of new heavy leptons has been performed assuming different scenarios for the mixing of the new particles with Standard Model leptons. No candidate events were found in a...

Mass Limit for the standard model Higgs boson with the full LEP I ALEPH data sample (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

background from the electroweak process e+e- --> l+ l- q qbar. This search results in a 95% C.L. lower limit on the Higgs boson mass of $63.9$~\Gcs. The reaction e+e- --> HZ* is used to search for...

Search for CP violation in the decay Z --> b$\overline{b}$g (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

About three million hadronic decays of the Z collected by ALEPH in the years 1991 to 1994 are used to search for anomalous CP violation beyond the Standard Model in the decay Z -> bbg. The study is...

Measurement of the b forward-backward asymmetry and mixing using high-p$_{\perp}$ leptons (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The B0-B0# average mixing parameter chi and b forward-backward asymmetry are measured from a sample of 4,200,000 Z -> q qbar events recorded with the ALEPH detector at LEP in the years 1990-1995....

A study of single and multi-photon production in e+e- collisions at centre-of-mass energies of 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The production of final states involving one or more energetic photons from e+e- collisions at high energies is studied using data collected by the ALEPH detector at LEP. The data consist of two...

Four-jet final state production in e+e- collisions at centre-of-mass energies of 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The four-jet final state is analyzed to search for hadronic decays of pair-produced heavy particles. The analysis uses the ALEPH data collected at LEP in November 1995 at centre-of-mass energies of...

Studies of QCD in $e^{+}e^{-}\to$ hadrons at E$_{cm}$ = 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Studies of QCD in $\mbox{e}^+\mbox{e}^- \rightarrow$ Hadrons at $E_{cm} = $} 130 and 136 GeV The ALEPH Collaboration An analysis of the properties of hadronic final states produced in...

Measurement of hadron and lepton-pair production from e+e- annihilation at centre-of-mass energies of 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Hadronic and leptonic cross-sections and forward-backward asymmetries are measured using 5.7~pb$^{-1}$ of data taken with the ALEPH detector at LEP at $\cms$ energies of 130 and 136~GeV. The results...

Study of the B$_{s}^{0}\overline{B}_{s}^{0}$ oscillation frequency using D$_{s}^{-}$l$^{+}$ combinations in Z decays (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A lower limit on the oscillation frequency of the BsBsbar system is obtained from approximately four million hadronic Z decays accumulated using the ALEPH detector at LEP from 1991 to 1995. Leptons...

Measurement of the mass of the $\Lambda_{b}$ baryon (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

In a data sample of four million hadronic \Z\ decays collected with the ALEPH detector at LEP, four $\Lambda_b$ baryon candidates are exclusively reconstructed in the $\Lambda_b \rightarrow...

Determination of sin$^{2}\vartheta^{eff}_{W}$ using jet charge measurements in hadronic Z decays (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The electroweak mixing angle is determined with high precision from measurements of the mean difference between forward and backward hemisphere charges in hadronic decays of the Z. A data sample of...

Improved measurement of the $\overline{B}^{0}$ and B$^{-}$ meson lifetimes (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The lifetimes of the \b0 \ and \bp\ mesons have been measured with the \aleph\ detector at LEP, using approximately 3 million hadronic Z decays collected in the period 1991--1994. In the first of...

Search for supersymmetric particles in e+e- collisions at centre-of-mass energies of 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Search for supersymmetric particles in e+e- collisions at centre-of-mass energies of 130 and 136 GeV. Searches for supersymmetric particles produced in e+e- collisions at centre-of-mass energies of...

Measurement of $\Lambda$ polarization from Z decays (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The polarization of \Lambda baryons from Z decays is studied with the {\sc Aleph} apparatus. Evidence of longitudinal polarization of s quarks from Z decay is observed for the first time. The...

Quark and gluon jet properties in symmetric three-jet events (1996)

Buskulic, Damir, Casper, David William, De Bonis, I, Décamp, D, Ghez, P, Goy, C, ...

Quark and gluon jets with the same energy, 24GeV, are compared in symmetric three-jet configurations from hadronic Z decays observed by the ALEPH detector. Jets are defined using the Durham...

Measurement of $\Lambda_{b}$ polarization in Z decays (1995)

Buskulic, Damir, Casper, David William, De Bonis, I, Décamp, D, Ghez, P, Goy, C, ...

The \Lambda_{\mathrm{b}} polarization in hadronic \mathrm{Z} decays is measured in semileptonic decays from the average energies of the charged lepton and the neutrino. In a data sample of...

Measurement of the Z resonance parameters at LEP

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Lucotte, A., ...

The properties of the Z resonance are measured from the analysis of 4.5 million Z decays into fermion pairs collected with the ALEPII detector at LEP. The data are consistent with lepton...

Measurements of the structure of quark and gluon jets in hadronic Z decays

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J.P., ...

An experimental investigation of the structure of identified quark and gluon jets is presented. Observables related to both the global and internal structure of jets are measured; this allows for...

Measurement of the Z resonance parameters at LEP

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Lucotte, A., ...

The properties of the Z resonance are measured from the analysis of 4.5 million Z decays into fermion pairs collected with the ALEPII detector at LEP. The data are consistent with lepton...

Measurements of the structure of quark and gluon jets in hadronic Z decays

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J.P., ...

An experimental investigation of the structure of identified quark and gluon jets is presented. Observables related to both the global and internal structure of jets are measured; this allows for...