Searches for vector-like quarks and $t\bar{t}$ resonances with the ATLAS detector

Searches for vector-like quarks and $t\bar{t}$ resonances are performed with the ATLAS experiment at the Large Hadron Collider using an integrated luminosity of 14.3 fb$^{-1}$ of proton-proton collisions recorded in 2012 at a center-of-mass energy of $\sqrt{s} = $ 8 TeV. Several final states have be...

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Detalles Bibliográficos
Autores principales: Álvarez González, Bárbara, Schwienhorst, R
Lenguaje:eng
Publicado: 2014
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1754917
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author Álvarez González, Bárbara
Schwienhorst, R
author_facet Álvarez González, Bárbara
Schwienhorst, R
author_sort Álvarez González, Bárbara
collection CERN
description Searches for vector-like quarks and $t\bar{t}$ resonances are performed with the ATLAS experiment at the Large Hadron Collider using an integrated luminosity of 14.3 fb$^{-1}$ of proton-proton collisions recorded in 2012 at a center-of-mass energy of $\sqrt{s} = $ 8 TeV. Several final states have been exploited to carry out these searches such as lepton plus jets and opposite and same-sign dileptons final states. No significant excess of events above the Standard Model expectation is observed, and upper limits at 95$\%$ CL are derived for vector-like quarks of various masses in a two-dimensional plane of branching ratios and for $t\bar{t}$ resonances in two benchmark models, a topcolor leptophobic $Z'$ and a Kaluza-Klein gluon.
id cern-1754917
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
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spelling cern-17549172023-03-14T19:38:14Zhttp://cds.cern.ch/record/1754917engÁlvarez González, BárbaraSchwienhorst, RSearches for vector-like quarks and $t\bar{t}$ resonances with the ATLAS detectorParticle Physics - ExperimentSearches for vector-like quarks and $t\bar{t}$ resonances are performed with the ATLAS experiment at the Large Hadron Collider using an integrated luminosity of 14.3 fb$^{-1}$ of proton-proton collisions recorded in 2012 at a center-of-mass energy of $\sqrt{s} = $ 8 TeV. Several final states have been exploited to carry out these searches such as lepton plus jets and opposite and same-sign dileptons final states. No significant excess of events above the Standard Model expectation is observed, and upper limits at 95$\%$ CL are derived for vector-like quarks of various masses in a two-dimensional plane of branching ratios and for $t\bar{t}$ resonances in two benchmark models, a topcolor leptophobic $Z'$ and a Kaluza-Klein gluon.Searches for vector-like quarks and $t\bar{t}$ resonances are performed with the ATLAS experiment at the Large Hadron Collider using an integrated luminosity of 14.3~fb$^{-1}$ of proton-proton collisions recorded in 2012 at a center-of-mass energy of $\sqrt{s} = $ 8~TeV. Several final states have been exploited to carry out these searches such as lepton plus jets and opposite and same-sign dilepton final states. No significant excess of events above the Standard Model expectation is observed, and upper limits at 95$\%$ CL are derived for vector-like quarks of various masses in a two-dimensional plane of branching ratios, and for $t\bar{t}$ resonances in two benchmark models, a topcolor leptophobic $Z'$ and a Kaluza-Klein gluon.arXiv:1409.3340ATL-PHYS-PROC-2014-122oai:cds.cern.ch:17549172014-09-10
spellingShingle Particle Physics - Experiment
Álvarez González, Bárbara
Schwienhorst, R
Searches for vector-like quarks and $t\bar{t}$ resonances with the ATLAS detector
title Searches for vector-like quarks and $t\bar{t}$ resonances with the ATLAS detector
title_full Searches for vector-like quarks and $t\bar{t}$ resonances with the ATLAS detector
title_fullStr Searches for vector-like quarks and $t\bar{t}$ resonances with the ATLAS detector
title_full_unstemmed Searches for vector-like quarks and $t\bar{t}$ resonances with the ATLAS detector
title_short Searches for vector-like quarks and $t\bar{t}$ resonances with the ATLAS detector
title_sort searches for vector-like quarks and $t\bar{t}$ resonances with the atlas detector
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1754917
work_keys_str_mv AT alvarezgonzalezbarbara searchesforvectorlikequarksandtbartresonanceswiththeatlasdetector
AT schwienhorstr searchesforvectorlikequarksandtbartresonanceswiththeatlasdetector

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