Search for vector-like leptons coupling to first- and second-generation Standard Model leptons in p p collisions at √s = 13 TeV with the ATLAS detector

作     者：Aad, G. Aakvaag, E. Abbott, B. Abdelhameed, S. Abeling, K. Abicht, N.J. Abidi, S.H. Aboelela, M. Aboulhorma, A. Abramowicz, H. Abulaiti, Y. Acharya, B.S. Ackermann, A. Bourdarios, C. Adam Adamczyk, L. Addepalli, S.V. Addison, M.J. Adelman, J. Adiguzel, A. Adye, T. Affolder, A.A. Afik, Y. Agaras, M.N. Aggarwal, A. Agheorghiesei, C. Ahmadov, F. Ahuja, S. Ai, X. Aielli, G. Aikot, A. Tamlihat, M. Ait Aitbenchikh, B. Akbiyik, M. Åkesson, T.P.A. Akimov, A.V. Akiyama, D. Akolkar, N.N. Aktas, S. Alberghi, G.L. Albert, J. Albicocco, P. Albouy, G.L. Alderweireldt, S. Alegria, Z.L. Aleksa, M. Aleksandrov, I.N. Alexa, C. Alexopoulos, T. Alfonsi, F. Algren, M. Alhroob, M. Ali, B. Ali, H.M.J. Ali, S. Alibocus, S.W. Aliev, M. Alimonti, G. Alkakhi, W. Allaire, C. Allbrooke, B.M.M. Allen, J.S. Allen, J.F. Allport, P.P. Aloisio, A. Alonso, F. Alpigiani, C. Alsolami, Z.M.K. Fernandez, A. Alvarez Cardoso, M. Alves Alviggi, M.G. Aly, M. Coutinho, Y. Amaral Ambler, A. Amelung, C. Amerl, M. Ames, C.G. Amidei, D. Amini, B. Amirie, K.J. Amirkhanov, A. Dos Santos, S.P. Amor Amos, K.R. Amperiadou, D. An, S. Ananiev, V. Anastopoulos, C. Andeen, T. Anders, J.K. Anderson, A.C. Andreazza, A. Angelidakis, S. Angerami, A. Anisenkov, A.V. Annovi, A. Antel, C. Antipov, E. Antonelli, M. Anulli, F. Aoki, M. Aoki, T. Aparo, M.A. Bella, L. Aperio Appelt, C. Apyan, A. Val, S.J. Arbiol Arcangeletti, C. Arce, A.T.H. Arguin, J.-F. Argyropoulos, S. Arling, J.-H. Arnaez, O. Arnold, H. Artoni, G. Asada, H. Asai, K. Asai, S. Asbah, N.A. Pickering, R.A. Ashby Aslam, A.M. Assamagan, K. Astalos, R. Astrand, K.S.V. Atashi, S. Atkin, R.J. Atmani, H. Atmasiddha, P.A. Augsten, K. Auriol, A.D. Austrup, V.A. Avolio, G. Axiotis, K. Azuelos, G. Babal, D. Bachacou, H. Bachas, K. Bachiu, A. Bachmann, E. Backes, M.J. Badea, A. Baer, T.M. Bagnaia, P. Bahmani, M. Bahner, D. Bai, K. Baines, J.T. Baines, L. Baker, O.K. Bakos, E. Gupta, D. Bakshi Filho, L.E. Balabram Balakrishnan, V. 

作者机构：Department of Physics University of Adelaide Adelaide Australia Department of Physics University of Alberta EdmontonAB Canada Department of Physics Ankara University Ankara Turkey Division of Physics TOBB University of Economics and Technology Ankara Turkey LAPP Université Savoie Mont Blanc CNRS/IN2P3 Annecy France APC Université Paris Cité CNRS/IN2P3 Paris France High Energy Physics Division Argonne National Laboratory ArgonneIL United States Department of Physics University of Arizona TucsonAZ United States Department of Physics University of Texas at Arlington ArlingtonTX United States Physics Department National and Kapodistrian University of Athens Athens Greece Physics Department National Technical University of Athens Zografou Greece Department of Physics University of Texas at Austin AustinTX United States Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan  Barcelona Institute of Science and Technology Barcelona Spain Institute of High Energy Physics Chinese Academy of Sciences Beijing China Physics Department Tsinghua University Beijing China Institute of Physics University of Belgrade Belgrade Serbia Department for Physics and Technology University of Bergen Bergen Norway Physics Division Lawrence Berkeley National Laboratory BerkeleyCA United States University of California BerkeleyCA United States Institut für Physik Humboldt Universität zu Berlin Berlin Germany Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics University of Bern Bern Switzerland School of Physics and Astronomy University of Birmingham Birmingham United Kingdom Department of Physics Bogazici University Istanbul Turkey Department of Physics Engineering Gaziantep University Gaziantep Turkey Department of Physics Istanbul University Istanbul Turkey Facultad de Ciencias y Centro de Investigaciónes Universidad Antonio Nariño Bogotá Colombia Departamento de Física Universidad Nacional de Colombia Bogotá Colombia Dipartimento di Fisica e Astronomia A. Righi Università di Bologna Bologna Italy INFN Sezione di Bologna Bologna Italy Physikalisches Institut Universität Bonn Bonn Germany Department of Physics Boston University BostonMA United States Department of Physics Brandeis University WalthamMA United States Transilvania University of Brasov Brasov Romania Horia Hulubei National Institute of Physics and Nuclear Engineering Bucharest Romania Department of Physics Alexandru Ioan Cuza University of Iasi Iasi Romania National Institute for Research and Development of Isotopic and Molecular Technologies Physics Department Cluj-Napoca Romania National University of Science and Technology Politechnica Bucharest Romania West University in Timisoara Timisoara Romania Faculty of Physics University of Bucharest Bucharest Romania Faculty of Mathematics Physics and Informatics Comenius University Bratislava Slovakia Department of Subnuclear Physics Institute of Experimental Physics lovak Academy of Sciences Kosice Slovakia Physics Department Brookhaven National Laboratory UptonNY United States  Buenos Aires Argentina California State University CA United States Cavendish Laboratory University of Cambridge Cambridge United Kingdom Department of Physics University of Cape Town Cape Town South Africa Department of Mechanical Engineering Science University of Johannesburg Johannesburg South Africa  Philippines School of Physics University of the Witwatersrand Johannesburg South Africa Department of Physics Carleton University OttawaON Canada Faculté des Sciences Ain Chock Université Hassan II de Casablanca Morocco Faculté des Sciences Université Ibn-Tofail Kénitra Morocco LPMR Faculté des Sciences Université Mohamed Premier Oujda Morocco Faculté des sciences Université Mohammed V Rabat Morocco Institute of Applied Physics Mohammed VI Polytechnic University Ben Guerir Morocco CERN Geneva Switzerland CERN Switzerland CERN Switzerland CERN Switzerland Enrico Fermi Institute University of Chicago ChicagoIL United States LPC Université Clermont Auvergne CNRS/IN2P3 Clermont-Ferrand France Nevis Laboratory Columbia University IrvingtonNY United States Niels Bohr Institute University of Copenhagen Copenhagen Denmark Dipartimento di Fisica Università della Calabria Rende Italy INFN Gruppo Collegato di Cosenza Laboratori Nazionali di Frascati Italy Physics Department Southern Methodist University DallasTX United States National Centre for Scientific Research "Demokritos" Agia Paraskevi Greece Department of Physics Stockholm University Sweden Oskar Klein Centre Stockholm Sweden Deutsches Elektronen-Synchrotron DESY Hamburg and Zeuthen Germany Fakultät Physik Technische Universität Dortmund Dortmund Germany Institut für Kern- und Teilchenphysik Technische Universität Dresden Dresden Germany Department of Physics Duke University DurhamNC United States SUPA - School of Physics and Astronomy University of Edinburgh Edinburgh United Kingdom INFN e Laboratori Nazionali di Frascati Frascati Italy Physikalisches Institut Albert-Ludwigs-Universität Freiburg Freiburg Germany II. Physikalisches Institut Georg-August-Universität Göttingen Göttingen Germany Département de Physique Nucléaire et Corpusculaire Université de Genève Genève Switzerland 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2024年

核心收录：

主　　题：Vectors 

摘      要：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. © 2024, CC BY.