Search for lepton-flavour violation in high-mass dilepton final states using 139 fb<sup>–1</sup> of <em>pp</em> collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
A search is performed for a heavy particle decaying into different-flavour, dilepton final states, using 139 fb<sup>–1</sup> of proton-proton collision data at $\sqrt{s}$ = 13 TeV collected in 2015–2018 by the ATLAS detector at the Large Hadron Collider. Final states with electrons, muons and hadronically decaying tau leptons are considered (eμ, eτ or μτ). No significant excess over the Standard Model predictions is observed. Upper limits on the production cross-section are set as a function of the mass of a Z' boson, a supersymmetric τ-sneutrino, and a quantum black-hole. The observed 95% CL lower mass limits obtained on a typical benchmark model Z' boson are 5.0 TeV (eμ), 4.0 TeV (eτ), and 3.9 TeV (μτ), respectively.
Authors
- G. Aad (ORCID: https://orcid.org/0000-0002-6665-4934)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Aix-Marseille Université (FR)
- UC Irvine Health (US)
Publication Details
- Journal
- OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)
- Published
- 2025-02-07
- DOI
- https://doi.org/10.1007/jhep10%282023%29082
- Citations
- 2
- Primary Topic
- Particle physics theoretical and experimental studies
- Type
- article
Funders
- National Science Foundation
- U.S. Department of Energy
- Alexander von Humboldt-Stiftung
- Canarie
- CERN
- Compute Canada
- Türkiye Enerji, Nükleer ve Maden Araştırma Kurumu
- European Commission
- Deutsche Forschungsgemeinschaft
- Agence Nationale de la Recherche
- Ministry of Education, Culture, Sports, Science and Technology
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
- Danmarks Grundforskningsfond
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- National Natural Science Foundation of China
- Ministerstvo Školství, Mládeže a Tělovýchovy
- Bundesministerium für Bildung und Forschung
- Austrian Science Fund
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek
- Bundesministerium für Wissenschaft, Forschung und Wirtschaft
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Israel Science Foundation
- Max-Planck-Gesellschaft
- Javna Agencija za Raziskovalno Dejavnost RS
- Centre National de la Recherche Scientifique
- Ministerio de Ciencia e Innovación
- Centre National pour la Recherche Scientifique et Technique
- Agencia Nacional de Investigación y Desarrollo
- Natural Sciences and Engineering Research Council of Canada
- Science and Technology Facilities Council
- Japan Society for the Promotion of Science
- Fundação para a Ciência e a Tecnologia
- Agencia Nacional de Promoción Científica y Tecnológica
- British Columbia Knowledge Development Fund
- European Regional Development Fund
- Institut National de Physique Nucléaire et de Physique des Particules
- European Social Fund
- H2020 Marie Skłodowska-Curie Actions