Search for charginos with a small mass difference to the lightest supersymmetric particle at √s 189 GeV

A search for charginos nearly mass-degenerate with the lightest supersymmetric particle is performed using the 176 pby1 of data collected at 189 GeV in 1998 with the L3 detector. Mass differences between the chargino and the lightest supersymmetric particle below 4 GeV are considered. The presence o...

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Detalles Bibliográficos
Autores principales: Dova, María Teresa, L3 Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2000
Materias:
Ciencias Exactas
charginos
lightest supersymmetric particle
L3 detector
Física
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/75556
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-75556
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
charginos
lightest supersymmetric particle
L3 detector
Física
spellingShingle Ciencias Exactas
charginos
lightest supersymmetric particle
L3 detector
Física
Dova, María Teresa
L3 Collaboration
Search for charginos with a small mass difference to the lightest supersymmetric particle at √s 189 GeV
topic_facet Ciencias Exactas
charginos
lightest supersymmetric particle
L3 detector
Física
description A search for charginos nearly mass-degenerate with the lightest supersymmetric particle is performed using the 176 pby1 of data collected at 189 GeV in 1998 with the L3 detector. Mass differences between the chargino and the lightest supersymmetric particle below 4 GeV are considered. The presence of a high transverse momentum photon is required to single out the signal from the photon-photon interaction background. No evidence for charginos is found and upper limits on the cross section for chargino pair production are set. For the first time at LEP2, in the case of heavy scalar leptons, chargino mass limits are obtained for any <math><mtext>χ</mtext><mtext>̃</mtext><msup><mi></mi><mn>±</mn></msup><msub><mi></mi><mn>1</mn></msub><mtext>−</mtext><mtext>χ</mtext><mtext>̃</mtext><msup><mi></mi><mn>0</mn></msup><msub><mi></mi><mn>1</mn></msub></math> mass difference.
format Articulo
Articulo
author Dova, María Teresa
L3 Collaboration
author_facet Dova, María Teresa
L3 Collaboration
author_sort Dova, María Teresa
title Search for charginos with a small mass difference to the lightest supersymmetric particle at √s 189 GeV
title_short Search for charginos with a small mass difference to the lightest supersymmetric particle at √s 189 GeV
title_full Search for charginos with a small mass difference to the lightest supersymmetric particle at √s 189 GeV
title_fullStr Search for charginos with a small mass difference to the lightest supersymmetric particle at √s 189 GeV
title_full_unstemmed Search for charginos with a small mass difference to the lightest supersymmetric particle at √s 189 GeV
title_sort search for charginos with a small mass difference to the lightest supersymmetric particle at √s 189 gev
publishDate 2000
url http://sedici.unlp.edu.ar/handle/10915/75556
work_keys_str_mv AT dovamariateresa searchforcharginoswithasmallmassdifferencetothelightestsupersymmetricparticleats189gev
AT l3collaboration searchforcharginoswithasmallmassdifferencetothelightestsupersymmetricparticleats189gev
bdutipo_str Repositorios
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