@misc{10481/72824, year = {2021}, month = {12}, url = {http://hdl.handle.net/10481/72824}, abstract = {A search for lepton-flavor-violating Z→eτ and Z→μτ decays with pp collision data recorded by the ATLAS detector at the LHC is presented. This analysis uses 139 fb-1 of Run 2 pp collisions at s=13 TeV and is combined with the results of a similar ATLAS search in the final state in which the τ lepton decays hadronically, using the same data set as well as Run 1 data. The addition of leptonically decaying τ leptons significantly improves the sensitivity reach for Z→ℓτ decays. The Z→ℓτ branching fractions are constrained in this analysis to B(Z→eτ)<7.0×10-6 and B(Z→μτ)<7.2×10-6 at 95% confidence level. The combination with the previously published analyses sets the strongest constraints to date: B(Z→eτ)<5.0×10-6 and B(Z→μτ)<6.5×10-6 at 95% confidence level.}, organization = {ANID}, organization = {BSF-NSF}, organization = {CEA-DRF}, organization = {Cantons of Bern and Geneva}, organization = {Czech Republic}, organization = {EU-ESF}, organization = {GIF, Israel}, organization = {GenT Programmes Generalitat Valenciana, Spain}, organization = {General Secretariat for Research and Innovation}, organization = {IRFU}, organization = {La Caixa Banking Foundation}, organization = {MSMT}, organization = {Ministry of Education, Science, Research and Sport}, organization = {Norwegian Financial Mechanism 2014-2021}, organization = {PROMETEO}, organization = {RGC}, organization = {VSC CR}, organization = {Wallenberg Foundation}, organization = {National Science Foundation}, organization = {U.S. Department of Energy}, organization = {Alexander von Humboldt-Stiftung}, organization = {Canarie}, organization = {Natur og Univers, Det Frie Forskningsråd IN2P3-CNRS}, organization = {H2020 Marie Skłodowska-Curie Actions}, organization = {Arizona-Nevada Academy of Science}, organization = {Compute Canada}, organization = {Göran Gustafssons Stiftelser}, organization = {Natural Sciences and Engineering Research Council of Canada}, organization = {National Research Council Canada}, organization = {Canada Foundation for Innovation}, organization = {Science and Technology Facilities Council}, organization = {Leverhulme Trust}, organization = {Royal Society}, organization = {European Research Council}, organization = {European Cooperation in Science and Technology}, organization = {Australian Research Council}, organization = {Neurosurgical Research Foundation}, organization = {Helmholtz-Gemeinschaft}, organization = {Deutsche Forschungsgemeinschaft}, organization = {Agence Nationale de la Recherche}, organization = {Japan Society for the Promotion of Science}, organization = {Ministry of Education, Culture, Sports, Science and Technology}, organization = {Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung}, organization = {Danmarks Grundforskningsfond}, organization = {Fundação de Amparo à Pesquisa do Estado de São Paulo}, organization = {National Natural Science Foundation of China}, organization = {Fundação para a Ciência e a Tecnologia}, organization = {Bundesministerium für Bildung und Forschung}, organization = {Chinese Academy of Sciences}, organization = {Austrian Science Fund}, organization = {Generalitat de Catalunya}, organization = {Agencia Nacional de Promoción Científica y Tecnológica}, organization = {Nederlandse Organisatie voor Wetenschappelijk Onderzoek}, organization = {Bundesministerium für Wissenschaft, Forschung und Wirtschaft}, organization = {Ministry of Education and Science of the Russian Federation}, organization = {Conselho Nacional de Desenvolvimento Científico e Tecnológico}, organization = {Joint Institute for Nuclear Research}, organization = {Nella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Science}, organization = {Israel Science Foundation}, organization = {Instituto Nazionale di Fisica Nucleare}, organization = {Narodowe Centrum Nauki}, organization = {Javna Agencija za Raziskovalno Dejavnost RS}, organization = {Vetenskapsrådet}, organization = {Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja}, organization = {Ministerstwo Edukacji i Nauki}, organization = {Ministry of Science and Technology, Taiwan}, organization = {Ministerio de Ciencia e Innovación}, organization = {Norges Forskningsråd}, organization = {Centre National pour la Recherche Scientifique et Technique}, organization = {Horizon 2020}, organization = {British Columbia Knowledge Development Fund}, organization = {European Regional Development Fund}, organization = {Defence Science Institute}, organization = {Council on grants of the President of the Russian Federation}, organization = {National Research Center "Kurchatov Institute"}, organization = {CERN}, publisher = {American Physical Society}, title = {Search for Lepton-Flavor Violation in Z-Boson Decays with τ Leptons with the ATLAS Detector}, doi = {10.1103/PhysRevLett.127.271801}, author = {Aguilar Saavedra, Juan Antonio and Aad, G. and Atlas Collaboration}, }