Search for anomalous production of prompt like-sign lepton pairs at √s =7 TeV with the ATLAS detector

An inclusive search for anomalous production of two prompt, isolated leptons with the same electric charge is presented. The search is performed in a data sample corresponding to 4.7 fb-1 of integrated luminosity collected in 2011 at √s =7 TeV with the ATLAS detector at the LHC. Pairs of leptons (e±...

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Detalles Bibliográficos
Autores principales: Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín Fernando, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Física
Ciencias Exactas
Hadron-Hadron Scattering
lepton
ATLAS detector
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84517
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84517
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Ciencias Exactas
Hadron-Hadron Scattering
lepton
ATLAS detector
spellingShingle Física
Ciencias Exactas
Hadron-Hadron Scattering
lepton
ATLAS detector
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
Search for anomalous production of prompt like-sign lepton pairs at √s =7 TeV with the ATLAS detector
topic_facet Física
Ciencias Exactas
Hadron-Hadron Scattering
lepton
ATLAS detector
description An inclusive search for anomalous production of two prompt, isolated leptons with the same electric charge is presented. The search is performed in a data sample corresponding to 4.7 fb-1 of integrated luminosity collected in 2011 at √s =7 TeV with the ATLAS detector at the LHC. Pairs of leptons (e± e±, e± μ ±, and μ ± μ ±) with large transverse momentum are selected, and the dilepton invariant mass distribution is examined for any deviation from the Standard Model expectation. No excess is found, and upper limits on the production cross section of like-sign lepton pairs from physics processes beyond the Standard Model are placed as a function of the dilepton invariant mass within a fiducial region close to the experimental selection criteria. The 95% confidence level upper limits on the cross section of anomalous e± e ±, e± μ ±, or μ ± μ ± production range between 1.7 fb and 64 fb depending on the dilepton mass and flavour combination.
format Articulo
Articulo
author Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_facet Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_sort Alonso, Francisco
title Search for anomalous production of prompt like-sign lepton pairs at √s =7 TeV with the ATLAS detector
title_short Search for anomalous production of prompt like-sign lepton pairs at √s =7 TeV with the ATLAS detector
title_full Search for anomalous production of prompt like-sign lepton pairs at √s =7 TeV with the ATLAS detector
title_fullStr Search for anomalous production of prompt like-sign lepton pairs at √s =7 TeV with the ATLAS detector
title_full_unstemmed Search for anomalous production of prompt like-sign lepton pairs at √s =7 TeV with the ATLAS detector
title_sort search for anomalous production of prompt like-sign lepton pairs at √s =7 tev with the atlas detector
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/84517
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