Search for single production of vector-like T quarks decaying into Ht or Zt in pp collisions at CMS = 13 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10476328" target="_blank" >RIV/00216208:11320/23:10476328 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Nt2Mqvsd7Z" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Nt2Mqvsd7Z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP08(2023)153" target="_blank" >10.1007/JHEP08(2023)153</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for single production of vector-like T quarks decaying into Ht or Zt in pp collisions at CMS = 13 TeV with the ATLAS detector

Popis výsledku v původním jazyce

This paper describes a search for the single production of an up-type vector-likequark (T) decaying as T ! Ht or T ! Zt. The search utilises a dataset of pp collisions atps = 13TeV collected with the ATLAS detector during the 2015-2018 data-taking periodof the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb-1. Dataare analysed in final states containing a single lepton with multiple jets and b-jets. Thepresence of boosted heavy resonances in the event is exploited to discriminate the signalfrom the Standard Model background. No significant excess above the Standard Model expectationis observed, and 95% CL upper limits are set on the production cross section of Tquarks in different decay channels. The results are interpreted in several benchmark scenariosto set limits on the mass and universal coupling strength () of the vector-like quark. Forsinglet T quarks, values above 0.53 are excluded for all masses below 2.3TeV. At a massof 1.6TeV, values as low as 0.35 are excluded. For T quarks in the doublet scenario, wherethe production cross section is much lower, values above 0.72 are excluded for all massesbelow 1.7TeV, and this exclusion is extended to above 0.55 for low masses around 1.0TeV.

Název v anglickém jazyce

Search for single production of vector-like T quarks decaying into Ht or Zt in pp collisions at CMS = 13 TeV with the ATLAS detector

Popis výsledku anglicky

This paper describes a search for the single production of an up-type vector-likequark (T) decaying as T ! Ht or T ! Zt. The search utilises a dataset of pp collisions atps = 13TeV collected with the ATLAS detector during the 2015-2018 data-taking periodof the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb-1. Dataare analysed in final states containing a single lepton with multiple jets and b-jets. Thepresence of boosted heavy resonances in the event is exploited to discriminate the signalfrom the Standard Model background. No significant excess above the Standard Model expectationis observed, and 95% CL upper limits are set on the production cross section of Tquarks in different decay channels. The results are interpreted in several benchmark scenariosto set limits on the mass and universal coupling strength () of the vector-like quark. Forsinglet T quarks, values above 0.53 are excluded for all masses below 2.3TeV. At a massof 1.6TeV, values as low as 0.35 are excluded. For T quarks in the doublet scenario, wherethe production cross section is much lower, values above 0.72 are excluded for all massesbelow 1.7TeV, and this exclusion is extended to above 0.55 for low masses around 1.0TeV.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10300 - Physical sciences

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

1029-8479

Svazek periodika

2023

Číslo periodika v rámci svazku

08

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

69

Strana od-do

153

Kód UT WoS článku

001062421100001

EID výsledku v databázi Scopus

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