Search for vector-like leptons coupling to first- and second-generation Standard Model leptons in pp collisions at √s=13 TeV with the ATLAS detector
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00644824" target="_blank" >RIV/68378271:_____/25:00644824 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/25:73633869
Result on the web
<a href="https://hdl.handle.net/11104/0374697" target="_blank" >https://hdl.handle.net/11104/0374697</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP05(2025)075" target="_blank" >10.1007/JHEP05(2025)075</a>
Alternative languages
Result language
angličtina
Original language name
Search for vector-like leptons coupling to first- and second-generation Standard Model leptons in pp collisions at √s=13 TeV with the ATLAS detector
Original language description
A search for pair production of vector-like leptons coupling to first- and second-generation Standard Model leptons is presented. The search is based on a dataset of proton-proton collisions at √s= 13 TeV recorded with the ATLAS detector during Run 2 of the Large Hadron Collider, corresponding to an integrated luminosity of 140 fb−1. Events are categorised depending on the flavour and multiplicity of leptons (electrons or muons), as well as on the scores of a deep neural network targeting particular signal topologies according to the decay modes of the vector-like leptons. In each of the signal regions, the scalar sum of the transverse momentum of the leptons and the missing transverse momentum is analysed. The main background processes are estimated using dedicated control regions in a simultaneous fit with the signal regions to data. No significant excess above the Standard Model background expectation is observed and limits are set at 95% confidence level on the production cross-sections of vector-like electrons and muons as a function of the vector-like lepton mass, separately for SU(2) doublet and singlet scenarios. The resulting mass lower limits are 1220 GeV (1270 GeV) and 320 GeV (400 GeV) for vector-like electrons (muons) in the doublet and singlet scenarios, respectively.
Czech name
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Czech description
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Classification
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
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Fundamental constituents of matter through frontier technologies</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Volume of the periodical
2025
Issue of the periodical within the volume
5
Country of publishing house
DE - GERMANY
Number of pages
60
Pages from-to
75
UT code for WoS article
001498532700001
EID of the result in the Scopus database
2-s2.0-105012449210