Search for pair-production of vector-like quarks in lepton plus jets final states containing at least one b-tagged jet using the Run 2 data from the ATLAS experiment

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73628457" target="_blank" >RIV/61989592:15310/24:73628457 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/24:00380695 RIV/68407700:21240/24:00380695 RIV/68407700:21340/24:00380695 RIV/68407700:21670/24:00380695
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0370269324003010" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0370269324003010</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2024.138743" target="_blank" >10.1016/j.physletb.2024.138743</a>

Result language
angličtina
Original language name
Search for pair-production of vector-like quarks in lepton plus jets final states containing at least one b-tagged jet using the Run 2 data from the ATLAS experiment
Original language description
A search is presented for the pair-production of heavy vector-like quarks in the lepton+jets final state using 140 fb(-1) of proton-proton collisions at root s = 13 TeV collected with the ATLAS detector. The search is optimised for vector-like top-quarks (T) that decay into a W boson and a b-quark, with one W boson decaying leptonically and the other hadronically. Other vector-like quark flavours and decay modes are also considered. Events are selected with one high transverse-momentum electron or muon, large missing transverse momentum, a large-radius jet identified as a W boson, and multiple small-radius jets, at least one of which is b-tagged. Vector-like T-quarks with 100% branching ratio to Wb are excluded at 95% CL for masses below 1700 GeV. These limits are also applied to vector-like Y-quarks, which decay exclusively into a W boson and a b-quark. Isospin singlets with B(T -> Wb: Ht: Zt ) = 1/2 : 1/4 : 1/4 are excluded for masses below 1360 GeV.
Czech name
—
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
—
OECD FORD branch
10303 - Particles and field physics

Project
<a href="/en/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Fundamental constituents of matter through frontier technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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