Search for light top squark pair production in final states with leptons and b-jets with the ATLAS detector in √s = 7 TeV proton–proton collisions
- Autores
- Alonso, Francisco; Anduaga, Xabier Sebastián; Dova, María Teresa; Monticelli, Fernando Gabriel; Tripiana, Martín F.; The ATLAS Collaboration
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The results of a search for pair production of light top squarks are presented, using 4.7 fb-1 of √s = 7 TeV proton–proton collisions collected with the ATLAS detector at the Large Hadron Collider. This search targets top squarks with masses similar to, or lighter than, the top quark mass. Final states containing exclusively one or two leptons (e, μ), large missing transverse momentum, light-flavour jets and b-jets are used to reconstruct the top squark pair system. Event-based mass scale variables are used to separate the signal from a large tt¯ background. No excess over the Standard Model expectations is found. The results are interpreted in the framework of the Minimal Supersymmetric Standard Model, assuming the top squark decays exclusively to a chargino and a b-quark, while requiring different mass relationships between the Supersymmetric particles in the decay chain. Light top squarks with masses between 123–167 GeV are excluded for neutralino masses around 55 GeV.
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
Física
top quark
leptons
jets - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-nd/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/80349
Ver los metadatos del registro completo
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Search for light top squark pair production in final states with leptons and b-jets with the ATLAS detector in √s = 7 TeV proton–proton collisionsAlonso, FranciscoAnduaga, Xabier SebastiánDova, María TeresaMonticelli, Fernando GabrielTripiana, Martín F.The ATLAS CollaborationCiencias ExactasFísicatop quarkleptonsjetsThe results of a search for pair production of light top squarks are presented, using 4.7 fb<sup>-1</sup> of √s = 7 TeV proton–proton collisions collected with the ATLAS detector at the Large Hadron Collider. This search targets top squarks with masses similar to, or lighter than, the top quark mass. Final states containing exclusively one or two leptons (e, μ), large missing transverse momentum, light-flavour jets and b-jets are used to reconstruct the top squark pair system. Event-based mass scale variables are used to separate the signal from a large tt¯ background. No excess over the Standard Model expectations is found. The results are interpreted in the framework of the Minimal Supersymmetric Standard Model, assuming the top squark decays exclusively to a chargino and a b-quark, while requiring different mass relationships between the Supersymmetric particles in the decay chain. Light top squarks with masses between 123–167 GeV are excluded for neutralino masses around 55 GeV.Facultad de Ciencias Exactas2013-01-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf13-31http://sedici.unlp.edu.ar/handle/10915/80349enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2013.01.049info: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:UNLP2025-10-22T16:55:36Zoai:sedici.unlp.edu.ar:10915/80349Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:55:36.627SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Search for light top squark pair production in final states with leptons and b-jets with the ATLAS detector in √s = 7 TeV proton–proton collisions |
| title |
Search for light top squark pair production in final states with leptons and b-jets with the ATLAS detector in √s = 7 TeV proton–proton collisions |
| spellingShingle |
Search for light top squark pair production in final states with leptons and b-jets with the ATLAS detector in √s = 7 TeV proton–proton collisions Alonso, Francisco Ciencias Exactas Física top quark leptons jets |
| title_short |
Search for light top squark pair production in final states with leptons and b-jets with the ATLAS detector in √s = 7 TeV proton–proton collisions |
| title_full |
Search for light top squark pair production in final states with leptons and b-jets with the ATLAS detector in √s = 7 TeV proton–proton collisions |
| title_fullStr |
Search for light top squark pair production in final states with leptons and b-jets with the ATLAS detector in √s = 7 TeV proton–proton collisions |
| title_full_unstemmed |
Search for light top squark pair production in final states with leptons and b-jets with the ATLAS detector in √s = 7 TeV proton–proton collisions |
| title_sort |
Search for light top squark pair production in final states with leptons and b-jets with the ATLAS detector in √s = 7 TeV proton–proton collisions |
| dc.creator.none.fl_str_mv |
Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration |
| author |
Alonso, Francisco |
| author_facet |
Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration |
| author_role |
author |
| author2 |
Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration |
| author2_role |
author author author author author |
| dc.subject.none.fl_str_mv |
Ciencias Exactas Física top quark leptons jets |
| topic |
Ciencias Exactas Física top quark leptons jets |
| dc.description.none.fl_txt_mv |
The results of a search for pair production of light top squarks are presented, using 4.7 fb<sup>-1</sup> of √s = 7 TeV proton–proton collisions collected with the ATLAS detector at the Large Hadron Collider. This search targets top squarks with masses similar to, or lighter than, the top quark mass. Final states containing exclusively one or two leptons (e, μ), large missing transverse momentum, light-flavour jets and b-jets are used to reconstruct the top squark pair system. Event-based mass scale variables are used to separate the signal from a large tt¯ background. No excess over the Standard Model expectations is found. The results are interpreted in the framework of the Minimal Supersymmetric Standard Model, assuming the top squark decays exclusively to a chargino and a b-quark, while requiring different mass relationships between the Supersymmetric particles in the decay chain. Light top squarks with masses between 123–167 GeV are excluded for neutralino masses around 55 GeV. Facultad de Ciencias Exactas |
| description |
The results of a search for pair production of light top squarks are presented, using 4.7 fb<sup>-1</sup> of √s = 7 TeV proton–proton collisions collected with the ATLAS detector at the Large Hadron Collider. This search targets top squarks with masses similar to, or lighter than, the top quark mass. Final states containing exclusively one or two leptons (e, μ), large missing transverse momentum, light-flavour jets and b-jets are used to reconstruct the top squark pair system. Event-based mass scale variables are used to separate the signal from a large tt¯ background. No excess over the Standard Model expectations is found. The results are interpreted in the framework of the Minimal Supersymmetric Standard Model, assuming the top squark decays exclusively to a chargino and a b-quark, while requiring different mass relationships between the Supersymmetric particles in the decay chain. Light top squarks with masses between 123–167 GeV are excluded for neutralino masses around 55 GeV. |
| publishDate |
2013 |
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2013-01-29 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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http://sedici.unlp.edu.ar/handle/10915/80349 |
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eng |
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eng |
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