Review of the chargino search in DELPHI: Latest results at E_{cm} = 189 GeV

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An update of the searches for charginos is presented, based on a data sample corresponding to the 158 pb-1 recorded by the DELPHI detector in 1998, at a centre-of-mass energy of 189 GeV. No evidence for a signal was found. The lower mass limits are 4-5 GeV/c2 higher than those obtained at a centre-o...

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Detalles Bibliográficos
Autores principales: Alderweireld, T, Gil, I, Rebecchi, P
Lenguaje:eng
Publicado: 1999
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/548868
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author Alderweireld, T
Gil, I
Rebecchi, P
author_facet Alderweireld, T
Gil, I
Rebecchi, P
author_sort Alderweireld, T
collection CERN
description An update of the searches for charginos is presented, based on a data sample corresponding to the 158 pb-1 recorded by the DELPHI detector in 1998, at a centre-of-mass energy of 189 GeV. No evidence for a signal was found. The lower mass limits are 4-5 GeV/c2 higher than those obtained at a centre-of-mass energy of 183 GeV. The (mu,M_2) domain excluded by combining the chargino searches with neutralino searches at the Z resonance implies a limit on the mass of the lightest neutralino which, for a heavy sneutrino, is constrained to be above 31.5 GeV/c2 for tan(beta) greater or equal 1.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
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spelling cern-5488682021-04-20T11:36:17Zhttp://cds.cern.ch/record/548868engAlderweireld, TGil, IRebecchi, PReview of the chargino search in DELPHI: Latest results at E_{cm} = 189 GeVParticle Physics - ExperimentAn update of the searches for charginos is presented, based on a data sample corresponding to the 158 pb-1 recorded by the DELPHI detector in 1998, at a centre-of-mass energy of 189 GeV. No evidence for a signal was found. The lower mass limits are 4-5 GeV/c2 higher than those obtained at a centre-of-mass energy of 183 GeV. The (mu,M_2) domain excluded by combining the chargino searches with neutralino searches at the Z resonance implies a limit on the mass of the lightest neutralino which, for a heavy sneutrino, is constrained to be above 31.5 GeV/c2 for tan(beta) greater or equal 1.CERN-OPEN-2002-031DELPHI-99-177-PHYS-843oai:cds.cern.ch:5488681999-12-14
spellingShingle Particle Physics - Experiment
Alderweireld, T
Gil, I
Rebecchi, P
Review of the chargino search in DELPHI: Latest results at E_{cm} = 189 GeV
title Review of the chargino search in DELPHI: Latest results at E_{cm} = 189 GeV
title_full Review of the chargino search in DELPHI: Latest results at E_{cm} = 189 GeV
title_fullStr Review of the chargino search in DELPHI: Latest results at E_{cm} = 189 GeV
title_full_unstemmed Review of the chargino search in DELPHI: Latest results at E_{cm} = 189 GeV
title_short Review of the chargino search in DELPHI: Latest results at E_{cm} = 189 GeV
title_sort review of the chargino search in delphi: latest results at e_{cm} = 189 gev
topic Particle Physics - Experiment
url http://cds.cern.ch/record/548868
work_keys_str_mv AT alderweireldt reviewofthecharginosearchindelphilatestresultsatecm189gev
AT gili reviewofthecharginosearchindelphilatestresultsatecm189gev
AT rebecchip reviewofthecharginosearchindelphilatestresultsatecm189gev

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