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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F23%3A00372909" target="_blank" >RIV/68407700:21220/23:00372909 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21340/23:00372909 RIV/68407700:21670/23:00372909

Result on the web

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

DOI - Digital Object Identifier

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

Result language

angličtina

Original language name

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

Original language description

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

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10303 - Particles and field physics

Project

<a href="/en/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Center for advanced applied science</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

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

Name of the periodical

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

1029-8479

Volume of the periodical

2023

Issue of the periodical within the volume

8

Country of publishing house

DE - GERMANY

Number of pages

69

Pages from-to

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UT code for WoS article

001062421100001

EID of the result in the Scopus database

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