Search for resonant top quark plus jet production in tt̄ + jets events with the ATLAS detector in pp collisions at √s = 7 TeV

This paper presents a search for a new heavy particle produced in association with a top or antitop quark. Two models in which the new heavy particle is a color singlet or a color triplet are considered, decaying, respectively, to t̄q or tq, leading to a resonance within the tt̄+jets signature. The...

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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
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84541
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84541
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
spellingShingle Física
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
Search for resonant top quark plus jet production in tt̄ + jets events with the ATLAS detector in pp collisions at √s = 7 TeV
topic_facet Física
description This paper presents a search for a new heavy particle produced in association with a top or antitop quark. Two models in which the new heavy particle is a color singlet or a color triplet are considered, decaying, respectively, to t̄q or tq, leading to a resonance within the tt̄+jets signature. The full 2011 ATLAS pp collision data set from the LHC (4.7fb -1) is used to search for tt̄ events produced in association with jets, in which one of the W bosons from the top quarks decays leptonically and the other decays hadronically. The data are consistent with the Standard Model expectation, and a new particle with mass below 430 Gev for both W ′ boson and color triplet models is excluded at 95% confidence level, assuming unit right-handed coupling.
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 resonant top quark plus jet production in tt̄ + jets events with the ATLAS detector in pp collisions at √s = 7 TeV
title_short Search for resonant top quark plus jet production in tt̄ + jets events with the ATLAS detector in pp collisions at √s = 7 TeV
title_full Search for resonant top quark plus jet production in tt̄ + jets events with the ATLAS detector in pp collisions at √s = 7 TeV
title_fullStr Search for resonant top quark plus jet production in tt̄ + jets events with the ATLAS detector in pp collisions at √s = 7 TeV
title_full_unstemmed Search for resonant top quark plus jet production in tt̄ + jets events with the ATLAS detector in pp collisions at √s = 7 TeV
title_sort search for resonant top quark plus jet production in tt̄ + jets events with the atlas detector in pp collisions at √s = 7 tev
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/84541
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AT anduagaxabiersebastian searchforresonanttopquarkplusjetproductioninttjetseventswiththeatlasdetectorinppcollisionsats7tev
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