Production of extra quarks at the Large Hadron Collider beyond the Narrow Width Approximation

This paper explores the effects of both finite width and interference (with background) in the pair production and decay of extra heavy quarks with charge 2/3 at the LHC. This dynamics is normally ignored in standard experimental searches and we assess herein the regions of validity of current appro...

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Detalles Bibliográficos
Autores principales: Moretti, Stefano, O'Brien, Dermot, Panizzi, Luca, Prager, Hugo
Lenguaje:eng
Publicado: 2016
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.96.075035
http://cds.cern.ch/record/2143033
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author Moretti, Stefano
O'Brien, Dermot
Panizzi, Luca
Prager, Hugo
author_facet Moretti, Stefano
O'Brien, Dermot
Panizzi, Luca
Prager, Hugo
author_sort Moretti, Stefano
collection CERN
description This paper explores the effects of both finite width and interference (with background) in the pair production and decay of extra heavy quarks with charge 2/3 at the LHC. This dynamics is normally ignored in standard experimental searches and we assess herein the regions of validity of current approaches, also evaluating the performances of a set of current experimental analyses at 8 and 13 TeV for the determination of the excluded regions in the (MVLQ,ΓVLQ) plane, with MVLQ being the mass of the vector-like quark and ΓVLQ its width. Further, we discuss the configurations of masses, widths and couplings where the latter breaks down.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
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spelling cern-21430332023-05-24T02:52:20Zdoi:10.1103/PhysRevD.96.075035http://cds.cern.ch/record/2143033engMoretti, StefanoO'Brien, DermotPanizzi, LucaPrager, HugoProduction of extra quarks at the Large Hadron Collider beyond the Narrow Width ApproximationParticle Physics - PhenomenologyParticle Physics - PhenomenologyThis paper explores the effects of both finite width and interference (with background) in the pair production and decay of extra heavy quarks with charge 2/3 at the LHC. This dynamics is normally ignored in standard experimental searches and we assess herein the regions of validity of current approaches, also evaluating the performances of a set of current experimental analyses at 8 and 13 TeV for the determination of the excluded regions in the (MVLQ,ΓVLQ) plane, with MVLQ being the mass of the vector-like quark and ΓVLQ its width. Further, we discuss the configurations of masses, widths and couplings where the latter breaks down.This paper explores the effects of both finite width and interference (with background) in the pair production and decay of extra heavy quarks with charge 2/3 at the Large Hadron Collider (LHC). This dynamics is normally ignored in standard experimental searches and we assess herein the regions of validity of current approaches, also evaluating the performances of a set of current experimental analyses at 8 and 13 TeV for the deterimination of the excluded regions in the $(M_{\rm VLQ},\Gamma_{\rm VLQ})$ plane, $M_{\rm VLQ}$ being the mass of the VLQ and $\Gamma_{\rm VLQ}$ its width. Further, we discuss the configurations of masses, widths and couplings where the latter breaks down.arXiv:1603.09237oai:cds.cern.ch:21430332016-03-30
spellingShingle Particle Physics - Phenomenology
Particle Physics - Phenomenology
Moretti, Stefano
O'Brien, Dermot
Panizzi, Luca
Prager, Hugo
Production of extra quarks at the Large Hadron Collider beyond the Narrow Width Approximation
title Production of extra quarks at the Large Hadron Collider beyond the Narrow Width Approximation
title_full Production of extra quarks at the Large Hadron Collider beyond the Narrow Width Approximation
title_fullStr Production of extra quarks at the Large Hadron Collider beyond the Narrow Width Approximation
title_full_unstemmed Production of extra quarks at the Large Hadron Collider beyond the Narrow Width Approximation
title_short Production of extra quarks at the Large Hadron Collider beyond the Narrow Width Approximation
title_sort production of extra quarks at the large hadron collider beyond the narrow width approximation
topic Particle Physics - Phenomenology
Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.96.075035
http://cds.cern.ch/record/2143033
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AT obriendermot productionofextraquarksatthelargehadroncolliderbeyondthenarrowwidthapproximation
AT panizziluca productionofextraquarksatthelargehadroncolliderbeyondthenarrowwidthapproximation
AT pragerhugo productionofextraquarksatthelargehadroncolliderbeyondthenarrowwidthapproximation

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