Search for single b∗-quark production with the ATLAS detector at √s = 7 TeV

The results of a search for an excited bottom-quark b∗ in pp collisions at √s = 7 TeV, using 4.7 fb−1 of data collected by the ATLAS detector at the LHC are presented. In the model studied, a single b∗-quark is produced through a chromomagnetic interaction and subsequently decays to a W boson and a...

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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: 2013
Materias:
Ciencias Exactas
Física
ATLAS detector
b∗
Single top-quark
Excited quark
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/77568
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-77568
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
ATLAS detector
b∗
Single top-quark
Excited quark
spellingShingle Ciencias Exactas
Física
ATLAS detector
b∗
Single top-quark
Excited quark
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
Search for single b∗-quark production with the ATLAS detector at √s = 7 TeV
topic_facet Ciencias Exactas
Física
ATLAS detector
b∗
Single top-quark
Excited quark
description The results of a search for an excited bottom-quark b∗ in pp collisions at √s = 7 TeV, using 4.7 fb−1 of data collected by the ATLAS detector at the LHC are presented. In the model studied, a single b∗-quark is produced through a chromomagnetic interaction and subsequently decays to a W boson and a top quark. The search is performed in the dilepton and lepton+jets final states, which are combined to set limits on b∗-quark couplings for a range of b∗-quark masses. For a benchmark with unit size chromomagnetic and Standard Model-like electroweak b∗ couplings, b∗ quarks with masses less than 870 GeV are excluded at the 95% credibility 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 single b∗-quark production with the ATLAS detector at √s = 7 TeV
title_short Search for single b∗-quark production with the ATLAS detector at √s = 7 TeV
title_full Search for single b∗-quark production with the ATLAS detector at √s = 7 TeV
title_fullStr Search for single b∗-quark production with the ATLAS detector at √s = 7 TeV
title_full_unstemmed Search for single b∗-quark production with the ATLAS detector at √s = 7 TeV
title_sort search for single b∗-quark production with the atlas detector at √s = 7 tev
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/77568
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