Search for single production of the heavy vectorlike $T$ quark with $T\to th$ and $h\to \gamma\gamma$ at the high-luminosity LHC

The vectorlike top partners T are predicted in many extensions of the Standard Model (SM). In a simplified model including a single vectorlike T quark with charge 2/3, we investigate the process pp→Tj induced by the couplings between the top partner with the first and the third generation quarks at...

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Detalles Bibliográficos
Autor principal: Liu, Yao-Bei
Lenguaje:eng
Publicado: 2016
Materias:
hep-ph
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.95.035013
http://cds.cern.ch/record/2641460
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author Liu, Yao-Bei
author_facet Liu, Yao-Bei
author_sort Liu, Yao-Bei
collection CERN
description The vectorlike top partners T are predicted in many extensions of the Standard Model (SM). In a simplified model including a single vectorlike T quark with charge 2/3, we investigate the process pp→Tj induced by the couplings between the top partner with the first and the third generation quarks at the LHC. We find that the mixing with the first generation can enhance the production cross section. We further study the observability of the single heavy top partner through the process pp→T(→th)j→t(→bℓνℓ)h(→γγ)j at the high-luminosity (HL)-LHC (a 14 TeV pp collider with an integrated luminosity of 3  ab-1). For three typical heavy T quark masses mT=600, 800 and 1000 GeV, the 3σ exclusion limits, as well as the 5σ discovery reach in the parameter plane of the two variables g*-RL, are respectively obtained at the HL-LHC.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
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spelling cern-26414602022-08-17T12:59:07Zdoi:10.1103/PhysRevD.95.035013http://cds.cern.ch/record/2641460engLiu, Yao-BeiSearch for single production of the heavy vectorlike $T$ quark with $T\to th$ and $h\to \gamma\gamma$ at the high-luminosity LHChep-phParticle Physics - PhenomenologyThe vectorlike top partners T are predicted in many extensions of the Standard Model (SM). In a simplified model including a single vectorlike T quark with charge 2/3, we investigate the process pp→Tj induced by the couplings between the top partner with the first and the third generation quarks at the LHC. We find that the mixing with the first generation can enhance the production cross section. We further study the observability of the single heavy top partner through the process pp→T(→th)j→t(→bℓνℓ)h(→γγ)j at the high-luminosity (HL)-LHC (a 14 TeV pp collider with an integrated luminosity of 3  ab-1). For three typical heavy T quark masses mT=600, 800 and 1000 GeV, the 3σ exclusion limits, as well as the 5σ discovery reach in the parameter plane of the two variables g*-RL, are respectively obtained at the HL-LHC.The vectorlike top partners $T$ are predicted in many extensions of the Standard Model (SM). In a simplified model including a single vectorlike $T$ quark with charge $2/3$, we investigate the process $pp \to Tj$ induced by the couplings between the top partner with the first and the third generation quarks at the LHC. We find that the mixing with the first generation can enhance the production cross section. We further study the observability of the single heavy top partner through the process $pp \to T(\to th)j\to t(\to b \ell \nu_{\ell})h( \to \gamma\gamma) j$ at the high-luminosity~(HL)-LHC~(a 14 TeV $pp$ collider with an integrated luminosity of 3 ab$^{-1}$). For three typical heavy $T$ quark masses $m_T=600,800$ and 1000 GeV, the $3\sigma$ exclusion limits, as well as the $5\sigma$ discovery reach in the parameter plane of the two variables $g^{\ast}-R_L$, are respectively obtained at the HL-LHC.arXiv:1612.05851oai:cds.cern.ch:26414602016-12-17
spellingShingle hep-ph
Particle Physics - Phenomenology
Liu, Yao-Bei
Search for single production of the heavy vectorlike $T$ quark with $T\to th$ and $h\to \gamma\gamma$ at the high-luminosity LHC
title Search for single production of the heavy vectorlike $T$ quark with $T\to th$ and $h\to \gamma\gamma$ at the high-luminosity LHC
title_full Search for single production of the heavy vectorlike $T$ quark with $T\to th$ and $h\to \gamma\gamma$ at the high-luminosity LHC
title_fullStr Search for single production of the heavy vectorlike $T$ quark with $T\to th$ and $h\to \gamma\gamma$ at the high-luminosity LHC
title_full_unstemmed Search for single production of the heavy vectorlike $T$ quark with $T\to th$ and $h\to \gamma\gamma$ at the high-luminosity LHC
title_short Search for single production of the heavy vectorlike $T$ quark with $T\to th$ and $h\to \gamma\gamma$ at the high-luminosity LHC
title_sort search for single production of the heavy vectorlike $t$ quark with $t\to th$ and $h\to \gamma\gamma$ at the high-luminosity lhc
topic hep-ph
Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.95.035013
http://cds.cern.ch/record/2641460
work_keys_str_mv AT liuyaobei searchforsingleproductionoftheheavyvectorliketquarkwithttothandhtogammagammaatthehighluminositylhc

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