A search for ttbar resonances with the ATLAS detector in 2.05 fb^-1 of
proton-proton collisions at sqrt(s) = 7 TeV
A. Collaboration. (2012)cite arxiv:1205.5371Comment: 11 pages plus author list (25 pages total), 6 figures, 5 tables, matches published EPJC version.
DOI: 10.1140/epjc/s10052-012-2083-1
Abstract
A search for top quark pair resonances in final states containing at least
one electron or muon has been performed with the ATLAS experiment at the CERN
Large Hadron Collider. The search uses a data sample corresponding to an
integrated luminosity of 2.05 fb^-1, which was recorded in 2011 at a
proton-proton centre-of-mass energy of 7 TeV. No evidence for a resonance is
found and limits are set on the production cross-section times branching ratio
to ttbar for narrow and wide resonances. For narrow Z' bosons, the observed 95%
credibility level limits range from 9.3 pb to 0.95 pb for masses in the range
of m_Z' = 500 GeV to m_Z' = 1300 GeV. The corresponding excluded mass region
for a leptophobic topcolour Z' boson (Kaluza-Klein gluon excitation in the
Randall-Sundrum model) is m_Z' < 880 GeV (m_g_KK < 1130 GeV).
Description
A search for ttbar resonances with the ATLAS detector in 2.05 fb^-1 of
proton-proton collisions at sqrt(s) = 7 TeV
%0 Journal Article
%1 collaboration2012search
%A Collaboration, ATLAS
%D 2012
%K 2fb 7tev paper resonances
%R 10.1140/epjc/s10052-012-2083-1
%T A search for ttbar resonances with the ATLAS detector in 2.05 fb^-1 of
proton-proton collisions at sqrt(s) = 7 TeV
%U http://arxiv.org/abs/1205.5371
%X A search for top quark pair resonances in final states containing at least
one electron or muon has been performed with the ATLAS experiment at the CERN
Large Hadron Collider. The search uses a data sample corresponding to an
integrated luminosity of 2.05 fb^-1, which was recorded in 2011 at a
proton-proton centre-of-mass energy of 7 TeV. No evidence for a resonance is
found and limits are set on the production cross-section times branching ratio
to ttbar for narrow and wide resonances. For narrow Z' bosons, the observed 95%
credibility level limits range from 9.3 pb to 0.95 pb for masses in the range
of m_Z' = 500 GeV to m_Z' = 1300 GeV. The corresponding excluded mass region
for a leptophobic topcolour Z' boson (Kaluza-Klein gluon excitation in the
Randall-Sundrum model) is m_Z' < 880 GeV (m_g_KK < 1130 GeV).
@article{collaboration2012search,
abstract = {A search for top quark pair resonances in final states containing at least
one electron or muon has been performed with the ATLAS experiment at the CERN
Large Hadron Collider. The search uses a data sample corresponding to an
integrated luminosity of 2.05 fb^-1, which was recorded in 2011 at a
proton-proton centre-of-mass energy of 7 TeV. No evidence for a resonance is
found and limits are set on the production cross-section times branching ratio
to ttbar for narrow and wide resonances. For narrow Z' bosons, the observed 95%
credibility level limits range from 9.3 pb to 0.95 pb for masses in the range
of m_Z' = 500 GeV to m_Z' = 1300 GeV. The corresponding excluded mass region
for a leptophobic topcolour Z' boson (Kaluza-Klein gluon excitation in the
Randall-Sundrum model) is m_Z' < 880 GeV (m_{g_KK} < 1130 GeV).},
added-at = {2014-10-13T16:34:23.000+0200},
author = {Collaboration, ATLAS},
biburl = {https://www.bibsonomy.org/bibtex/23f61cc03c0125cdc5b3fcd0b34fd0cc9/wc},
description = {A search for ttbar resonances with the ATLAS detector in 2.05 fb^-1 of
proton-proton collisions at sqrt(s) = 7 TeV},
doi = {10.1140/epjc/s10052-012-2083-1},
interhash = {cc06468eead9c091e646e5b2cefa6008},
intrahash = {3f61cc03c0125cdc5b3fcd0b34fd0cc9},
keywords = {2fb 7tev paper resonances},
note = {cite arxiv:1205.5371Comment: 11 pages plus author list (25 pages total), 6 figures, 5 tables, matches published EPJC version},
timestamp = {2014-10-13T16:34:23.000+0200},
title = {A search for ttbar resonances with the ATLAS detector in 2.05 fb^-1 of
proton-proton collisions at sqrt(s) = 7 TeV},
url = {http://arxiv.org/abs/1205.5371},
year = 2012
}