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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
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
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10300 - Physical sciences

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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