Search for lepton-flavour violation in high-mass dilepton final states using 139 fb.sup.−1./sup. of pp collisions at √s = 13 TeV with the ATLAS detector

0579119 - FZÚ 2024 RIV DE eng J - Journal Article
Aad, G. - Abbott, B. - Abeling, K. - Chudoba, Jiří - Federičová, Pavla - Hejbal, Jiří - Jačka, Petr - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Latoňová, Věra - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … Total 2921 authors
Search for lepton-flavour violation in high-mass dilepton final states using 139 fb⁻¹ of pp collisions at √s = 13 TeV with the ATLAS detector.
Journal of High Energy Physics. Roč. 2023, č. 10 (2023), č. článku 082. ISSN 1029-8479. E-ISSN 1029-8479
Research Infrastructure: CERN-CZ III - 90240
Institutional support: RVO:68378271
Keywords : Beyond Standard Mode * exotics * flavour physics * Hadron-Hadron Scattering
OECD category: Particles and field physics
Impact factor: 5.4, year: 2022
Method of publishing: Open access

A search is performed for a heavy particle decaying into different-flavour, dilepton final states, using 139 fb−1−1 of proton-proton collision data at ss ​ = 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.
Permanent Link: https://hdl.handle.net/11104/0347979