Search for light scalar top-quark pair production in final states with two leptons with the ATLAS detector in √ s =7 TeV proton–proton collisions

A search is presented for the pair production of light scalar top quarks in √ s = 7 TeV proton–proton collisions recorded with the ATLAS detector at the Large Hadron Collider. This analysis uses the full data sample collected during 2011 running that corresponds to a total integrated luminosity of 4...

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Detalles Bibliográficos
Autores principales: Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín F., The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Ciencias Exactas
Física
leptons
ATLAS detector
proton-proton collisions
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/78718
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-78718
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
Física
leptons
ATLAS detector
proton-proton collisions
spellingShingle Ciencias Exactas
Física
leptons
ATLAS detector
proton-proton collisions
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
Search for light scalar top-quark pair production in final states with two leptons with the ATLAS detector in √ s =7 TeV proton–proton collisions
topic_facet Ciencias Exactas
Física
leptons
ATLAS detector
proton-proton collisions
description A search is presented for the pair production of light scalar top quarks in √ s = 7 TeV proton–proton collisions recorded with the ATLAS detector at the Large Hadron Collider. This analysis uses the full data sample collected during 2011 running that corresponds to a total integrated luminosity of 4.7 fb−1. Light scalar top quarks are searched for in events with two opposite-sign leptons (e, μ), large missing transverse momentum and at least one jet in the final state. No excess over Standard Model expectations is found, and the results are interpreted under the assumption that the light scalar top decays to a b-quark in addition to an on-shell chargino whose decay occurs through a virtual W boson. If the chargino mass is 106 GeV, light scalar top-quark masses up to 130 GeV are excluded for neutralino masses below 70 GeV.
format Articulo
Articulo
author Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author_facet Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author_sort Anduaga, Xabier Sebastián
title Search for light scalar top-quark pair production in final states with two leptons with the ATLAS detector in √ s =7 TeV proton–proton collisions
title_short Search for light scalar top-quark pair production in final states with two leptons with the ATLAS detector in √ s =7 TeV proton–proton collisions
title_full Search for light scalar top-quark pair production in final states with two leptons with the ATLAS detector in √ s =7 TeV proton–proton collisions
title_fullStr Search for light scalar top-quark pair production in final states with two leptons with the ATLAS detector in √ s =7 TeV proton–proton collisions
title_full_unstemmed Search for light scalar top-quark pair production in final states with two leptons with the ATLAS detector in √ s =7 TeV proton–proton collisions
title_sort search for light scalar top-quark pair production in final states with two leptons with the atlas detector in √ s =7 tev proton–proton collisions
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/78718
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