Search for third-generation vector-like leptons in pp collisions at p s = 13 TeV with the ATLAS detector
Metadatos
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Springer Nature
Materia
Beyond Standard Model Hadron-Hadron Scattering
Fecha
2023-07-13Referencia bibliográfica
The ATLAS collaboration., Aad, G., Abbott, B. et al. Search for third-generation vector-like leptons in pp collisions at = 13 TeV with the ATLAS detector. J. High Energ. Phys. 2023, 118 (2023). [https://doi.org/10.1007/JHEP07(2023)118]
Patrocinador
ANPCyT; YerPhI, Armenia; Australian Research Council; BMWFW; Austrian Science Fund (FWF); Azerbaijan National Academy of Sciences (ANAS); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); Natural Sciences and Engineering Research Council of Canada (NSERC); Canada Foundation for Innovation; National Natural Science Foundation of China (NSFC); MEYS CR, Czech Republic; DNRF; Danish Natural Science Research Council; Centre National de la Recherche Scientifique (CNRS); CEA-DRF/IRFU, France; Federal Ministry of Education & Research (BMBF); Max Planck Society; RGC and Hong Kong SAR, China; Israel Science Foundation; Istituto Nazionale di Fisica Nucleare (INFN); Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MEiN, Poland; Fundacao para a Ciencia e a Tecnologia (FCT); MNE/IFA, Romania; Ministry of Education, Science & Technological Development, Serbia; MSSR, Slovakia; MSSR, Slovakia; Slovenian Research Agency - Slovenia; MIZS, Slovenia; Spanish Government; Wallenberg Foundation, Sweden; Swiss National Science Foundation (SNSF); Ministry of Science and Technology, Taiwan; United States Department of Energy (DOE); National Science Foundation (NSF); BCKDF; CANARIE; CRC, Canada PRIMUS 21/SCI/017 UNCE SCI/013; Czech Republic Government; European Research Council (ERC); European Union (EU); European Union (EU) Marie Curie Actions; Agence Nationale de la Recherche (ANR); German Research Foundation (DFG); Alexander von Humboldt Foundation; Greek NSRF, Greece; BSF-NSF; NCN; La Caixa Foundation; CERCA Programme Generalitat de Catalunya; PROMETEO; Center for Forestry Research & Experimentation (CIEF); Goran Gustafssons Stiftelse, Sweden; Royal Society; Leverhulme TrustResumen
Abstract: A search for vector-like leptons in multilepton (two, three, or four-or-more
electrons plus muons) final states with zero or more hadronic -lepton decays is presented.
The search is performed using a dataset corresponding to an integrated luminosity of
139 fb−1 of proton-proton collisions at a centre-of-mass energy of 13TeV recorded by the
ATLAS detector at the LHC. To maximize the separation of signal and background, a
machine-learning classifier is used. No excess of events is observed beyond the Standard
Model expectation. Using a doublet vector-like lepton model, vector-like leptons coupling
to third-generation Standard Model leptons are excluded in the mass range from 130 GeV
to 900 GeV at the 95% confidence level, while the highest excluded mass is expected to be
970 GeV.