Search for charginos and neutralinos in e+e- collisions at √s = 189 GeV
- Autores
- Dova, María Teresa; L3 Collaboration
- Año de publicación
- 2000
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We report the result of a search for charginos and neutralinos, in e+e- collisions at 189 GeV centre-of-mass energy at LEP. No evidence for such particles is found in a data sample of 176 pb-1. Improved upper limits for these particles are set on the production cross sections. New exclusion contours in the parameter space of the Minimal Supersymmetric Standard Model are derived, as well as new lower limits on the masses of these supersymmetric particles. Under the assumptions of common gaugino and scalar masses at the GUT scale, we set an absolute lower limit on the mass of the lightest neutralino of 32.5 GeV, and a limit on the mass of the lightest chargino of 67.7 GeV for M2 < 2 TeV.
Facultad de Ciencias Exactas - Materia
-
Física
Física
charginos
neutralinos
Minimal supersymmetric standard model - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-nd/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/78279
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Search for charginos and neutralinos in e+e- collisions at √s = 189 GeVDova, María TeresaL3 CollaborationFísicaFísicacharginosneutralinosMinimal supersymmetric standard modelWe report the result of a search for charginos and neutralinos, in e+e- collisions at 189 GeV centre-of-mass energy at LEP. No evidence for such particles is found in a data sample of 176 pb-1. Improved upper limits for these particles are set on the production cross sections. New exclusion contours in the parameter space of the Minimal Supersymmetric Standard Model are derived, as well as new lower limits on the masses of these supersymmetric particles. Under the assumptions of common gaugino and scalar masses at the GUT scale, we set an absolute lower limit on the mass of the lightest neutralino of 32.5 GeV, and a limit on the mass of the lightest chargino of 67.7 GeV for M2 < 2 TeV.Facultad de Ciencias Exactas2000-01-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/78279enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(99)01388-Xinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:11:54Zoai:sedici.unlp.edu.ar:10915/78279Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:11:54.898SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Search for charginos and neutralinos in e+e- collisions at √s = 189 GeV |
title |
Search for charginos and neutralinos in e+e- collisions at √s = 189 GeV |
spellingShingle |
Search for charginos and neutralinos in e+e- collisions at √s = 189 GeV Dova, María Teresa Física Física charginos neutralinos Minimal supersymmetric standard model |
title_short |
Search for charginos and neutralinos in e+e- collisions at √s = 189 GeV |
title_full |
Search for charginos and neutralinos in e+e- collisions at √s = 189 GeV |
title_fullStr |
Search for charginos and neutralinos in e+e- collisions at √s = 189 GeV |
title_full_unstemmed |
Search for charginos and neutralinos in e+e- collisions at √s = 189 GeV |
title_sort |
Search for charginos and neutralinos in e+e- collisions at √s = 189 GeV |
dc.creator.none.fl_str_mv |
Dova, María Teresa L3 Collaboration |
author |
Dova, María Teresa |
author_facet |
Dova, María Teresa L3 Collaboration |
author_role |
author |
author2 |
L3 Collaboration |
author2_role |
author |
dc.subject.none.fl_str_mv |
Física Física charginos neutralinos Minimal supersymmetric standard model |
topic |
Física Física charginos neutralinos Minimal supersymmetric standard model |
dc.description.none.fl_txt_mv |
We report the result of a search for charginos and neutralinos, in e+e- collisions at 189 GeV centre-of-mass energy at LEP. No evidence for such particles is found in a data sample of 176 pb-1. Improved upper limits for these particles are set on the production cross sections. New exclusion contours in the parameter space of the Minimal Supersymmetric Standard Model are derived, as well as new lower limits on the masses of these supersymmetric particles. Under the assumptions of common gaugino and scalar masses at the GUT scale, we set an absolute lower limit on the mass of the lightest neutralino of 32.5 GeV, and a limit on the mass of the lightest chargino of 67.7 GeV for M2 < 2 TeV. Facultad de Ciencias Exactas |
description |
We report the result of a search for charginos and neutralinos, in e+e- collisions at 189 GeV centre-of-mass energy at LEP. No evidence for such particles is found in a data sample of 176 pb-1. Improved upper limits for these particles are set on the production cross sections. New exclusion contours in the parameter space of the Minimal Supersymmetric Standard Model are derived, as well as new lower limits on the masses of these supersymmetric particles. Under the assumptions of common gaugino and scalar masses at the GUT scale, we set an absolute lower limit on the mass of the lightest neutralino of 32.5 GeV, and a limit on the mass of the lightest chargino of 67.7 GeV for M2 < 2 TeV. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-01-20 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/78279 |
url |
http://sedici.unlp.edu.ar/handle/10915/78279 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(99)01388-X |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
dc.format.none.fl_str_mv |
application/pdf |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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