Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC

The results of a search for direct pair production of heavy top-quark partners in 4.7 fb-1 of integrated luminosity from pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC are reported. Heavy top-quark partners decaying into a top quark and a neutral non-interacting particle are...

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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
hadron-hadron scattering
leptons
ATLAS detector
supersymmetry
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/78713
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-78713
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
hadron-hadron scattering
leptons
ATLAS detector
supersymmetry
spellingShingle Ciencias Exactas
Física
hadron-hadron scattering
leptons
ATLAS detector
supersymmetry
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
topic_facet Ciencias Exactas
Física
hadron-hadron scattering
leptons
ATLAS detector
supersymmetry
description The results of a search for direct pair production of heavy top-quark partners in 4.7 fb-1 of integrated luminosity from pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC are reported. Heavy top-quark partners decaying into a top quark and a neutral non-interacting particle are searched for in events with two leptons in the final state. No excess above the Standard Model expectation is observed. Limits are placed on the mass of a supersymmetric scalar top and of a spin-1/2 top-quark partner. A spin-1/2 top-quark partner with a mass between 300 GeV and 480 GeV, decaying to a top quark and a neutral non-interacting particle lighter than 100 GeV, is excluded at 95% con dence level.
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 a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
title_short Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
title_full Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
title_fullStr Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
title_full_unstemmed Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
title_sort search for a heavy top-quark partner in final states with two leptons with the atlas detector at the lhc
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/78713
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