Search for supersymmetry in events with four or more leptons in √s =8 TeV pp collisions with the ATLAS detector

Results from a search for supersymmetry in events with four or more leptons including electrons, muons and taus are presented. The analysis uses a data sample corresponding to 20.3 fb-1 of proton-proton collisions delivered by the Large Hadron Collider at s=8 TeV and recorded by the ATLAS detector....

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín Fernando, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Física
supersymmetry
leptons
Large Hadron Collider
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84845
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84845
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
supersymmetry
leptons
Large Hadron Collider
spellingShingle Física
supersymmetry
leptons
Large Hadron Collider
Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
Search for supersymmetry in events with four or more leptons in √s =8 TeV pp collisions with the ATLAS detector
topic_facet Física
supersymmetry
leptons
Large Hadron Collider
description Results from a search for supersymmetry in events with four or more leptons including electrons, muons and taus are presented. The analysis uses a data sample corresponding to 20.3 fb-1 of proton-proton collisions delivered by the Large Hadron Collider at s=8 TeV and recorded by the ATLAS detector. Signal regions are designed to target supersymmetric scenarios that can be either enriched in or depleted of events involving the production of a Z boson. No significant deviations are observed in data from standard model predictions and results are used to set upper limits on the event yields from processes beyond the standard model. Exclusion limits at the 95% confidence level on the masses of relevant supersymmetric particles are obtained. In R-parity-violating simplified models with decays of the lightest supersymmetric particle to electrons and muons, limits of 1350 and 750 GeV are placed on gluino and chargino masses, respectively. In R-parity-conserving simplified models with heavy neutralinos decaying to a massless lightest supersymmetric particle, heavy neutralino masses up to 620 GeV are excluded. Limits are also placed on other supersymmetric scenarios.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Search for supersymmetry in events with four or more leptons in √s =8 TeV pp collisions with the ATLAS detector
title_short Search for supersymmetry in events with four or more leptons in √s =8 TeV pp collisions with the ATLAS detector
title_full Search for supersymmetry in events with four or more leptons in √s =8 TeV pp collisions with the ATLAS detector
title_fullStr Search for supersymmetry in events with four or more leptons in √s =8 TeV pp collisions with the ATLAS detector
title_full_unstemmed Search for supersymmetry in events with four or more leptons in √s =8 TeV pp collisions with the ATLAS detector
title_sort search for supersymmetry in events with four or more leptons in √s =8 tev pp collisions with the atlas detector
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/84845
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