Single Production of Vectorlike Y Quarks at the HL-LHC

We study single production of exotic vectorlike Y quark with electric charge <math altimg="si1.svg"><mo stretchy="false">|</mo><msub><mrow><mi>Q</mi></mrow><mrow><mi>Y</mi></mrow></msub><mo stretchy=...

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Detalles Bibliográficos
Autores principales: Cetinkaya, V., Ozansoy, A., Ari, V., Ozsimsek, O.M., Cakir, O.
Lenguaje:eng
Publicado: 2020
Materias:
hep-ph
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysb.2021.115580
http://cds.cern.ch/record/2749815
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author Cetinkaya, V.
Ozansoy, A.
Ari, V.
Ozsimsek, O.M.
Cakir, O.
author_facet Cetinkaya, V.
Ozansoy, A.
Ari, V.
Ozsimsek, O.M.
Cakir, O.
author_sort Cetinkaya, V.
collection CERN
description We study single production of exotic vectorlike Y quark with electric charge <math altimg="si1.svg"><mo stretchy="false">|</mo><msub><mrow><mi>Q</mi></mrow><mrow><mi>Y</mi></mrow></msub><mo stretchy="false">|</mo><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>4</mn><mo stretchy="false">/</mo><mn>3</mn></math> and its subsequent decay at the High Luminosity LHC (HL-LHC). Most of the vector like quark (VLQ) decays have the electroweak W bosons in the intermediate state. Besides their direct productions singly or pairs, the W-bosons are involved in decay chains as a result of the decay of a top quark which contributes to the background. This is particularly the case since vectorlike Y quark, which is estimated to be produced with a high cross-section, can only decay via a W boson and a down type quark (<math altimg="si2.svg"><mi>d</mi><mo>,</mo><mi>s</mi><mo>,</mo><mi>b</mi></math>). We calculate the cross sections of signal (for different couplings and mass values) and relevant Standard Model (SM) backgrounds. After a fast simulation of signal and background events, estimations of the sensitivity to the parameters (mass range 1000-2500 GeV for coupling value <math altimg="si3.svg"><msub><mrow><mi>κ</mi></mrow><mrow><mi>Y</mi></mrow></msub><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>0.5</mn></math>, and mass range 500-2000 GeV for coupling values <math altimg="si4.svg"><msub><mrow><mi>κ</mi></mrow><mrow><mi>Y</mi></mrow></msub><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>0.3</mn></math> and <math altimg="si5.svg"><msub><mrow><mi>κ</mi></mrow><mrow><mi>Y</mi></mrow></msub><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>0.15</mn></math>) have been presented at the HL-LHC with centre of mass energy <math altimg="si6.svg"><msqrt><mrow><mi>s</mi></mrow></msqrt><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>14</mn></math> TeV and integrated luminosity projections of 300 fb<sup loc="post">−1</sup>, 1000 fb<sup loc="post">−1</sup> and 3000 fb<sup loc="post">−1</sup>.
id cern-2749815
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2020
record_format invenio
spelling cern-27498152023-03-14T17:32:36Zdoi:10.1016/j.nuclphysb.2021.115580http://cds.cern.ch/record/2749815engCetinkaya, V.Ozansoy, A.Ari, V.Ozsimsek, O.M.Cakir, O.Single Production of Vectorlike Y Quarks at the HL-LHChep-phParticle Physics - PhenomenologyWe study single production of exotic vectorlike Y quark with electric charge <math altimg="si1.svg"><mo stretchy="false">|</mo><msub><mrow><mi>Q</mi></mrow><mrow><mi>Y</mi></mrow></msub><mo stretchy="false">|</mo><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>4</mn><mo stretchy="false">/</mo><mn>3</mn></math> and its subsequent decay at the High Luminosity LHC (HL-LHC). Most of the vector like quark (VLQ) decays have the electroweak W bosons in the intermediate state. Besides their direct productions singly or pairs, the W-bosons are involved in decay chains as a result of the decay of a top quark which contributes to the background. This is particularly the case since vectorlike Y quark, which is estimated to be produced with a high cross-section, can only decay via a W boson and a down type quark (<math altimg="si2.svg"><mi>d</mi><mo>,</mo><mi>s</mi><mo>,</mo><mi>b</mi></math>). We calculate the cross sections of signal (for different couplings and mass values) and relevant Standard Model (SM) backgrounds. After a fast simulation of signal and background events, estimations of the sensitivity to the parameters (mass range 1000-2500 GeV for coupling value <math altimg="si3.svg"><msub><mrow><mi>κ</mi></mrow><mrow><mi>Y</mi></mrow></msub><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>0.5</mn></math>, and mass range 500-2000 GeV for coupling values <math altimg="si4.svg"><msub><mrow><mi>κ</mi></mrow><mrow><mi>Y</mi></mrow></msub><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>0.3</mn></math> and <math altimg="si5.svg"><msub><mrow><mi>κ</mi></mrow><mrow><mi>Y</mi></mrow></msub><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>0.15</mn></math>) have been presented at the HL-LHC with centre of mass energy <math altimg="si6.svg"><msqrt><mrow><mi>s</mi></mrow></msqrt><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>14</mn></math> TeV and integrated luminosity projections of 300 fb<sup loc="post">−1</sup>, 1000 fb<sup loc="post">−1</sup> and 3000 fb<sup loc="post">−1</sup>.We study single production of exotic vectorlike $Y$ quark with electric charge $|Q_{Y}|=4/3$ and its subsequent decay at the High Luminosity LHC (HL-LHC). Most of the vector like quark (VLQ) decays have the electroweak $W$ bosons in the intermediate state. Besides their direct productions singly or pairs, the $W$-bosons are involved in decay chains as a result of the decay of a top quark which contributes to the background. This is particularly the case since vectorlike $Y$ quark, which is estimated to be produced with a high cross-section, can only decay via a $W$ boson and a down type quark ($d,s,b$). We calculate the cross sections of signal (for different couplings and mass values) and relevant Standard Model (SM) backgrounds. After a fast simulation of signal and background events, estimations of the sensitivity to the parameters (mass range 1000-2500 GeV for coupling value $\kappa_{Y}=0.5$, and mass range 500-2000 GeV for coupling values $\kappa_{Y}=0.3$ and $\kappa_{Y}=0.15$) have been presented at the HL-LHC with center of mass energy $\sqrt{s}=14$ TeV and integrated luminosity projections of 300 fb$^{-1}$, 1000 fb$^{-1}$ and 3000 fb$^{-1}$.arXiv:2012.15308oai:cds.cern.ch:27498152020-12-30
spellingShingle hep-ph
Particle Physics - Phenomenology
Cetinkaya, V.
Ozansoy, A.
Ari, V.
Ozsimsek, O.M.
Cakir, O.
Single Production of Vectorlike Y Quarks at the HL-LHC
title Single Production of Vectorlike Y Quarks at the HL-LHC
title_full Single Production of Vectorlike Y Quarks at the HL-LHC
title_fullStr Single Production of Vectorlike Y Quarks at the HL-LHC
title_full_unstemmed Single Production of Vectorlike Y Quarks at the HL-LHC
title_short Single Production of Vectorlike Y Quarks at the HL-LHC
title_sort single production of vectorlike y quarks at the hl-lhc
topic hep-ph
Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.nuclphysb.2021.115580
http://cds.cern.ch/record/2749815
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AT ozansoya singleproductionofvectorlikeyquarksatthehllhc
AT ariv singleproductionofvectorlikeyquarksatthehllhc
AT ozsimsekom singleproductionofvectorlikeyquarksatthehllhc
AT cakiro singleproductionofvectorlikeyquarksatthehllhc

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