Number of the records: 1  

Search for lepton-flavor violation in Z-boson decays with tau leptons with the ATLAS detector.

  1. 1.
    0552879 - FZÚ 2022 RIV US eng J - Journal Article
    Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Latoňová, Věra - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … Total 2881 authors
    Search for lepton-flavor violation in Z-boson decays with tau leptons with the ATLAS detector.
    Physical Review Letters. Roč. 127, č. 27 (2021), č. článku 271801. ISSN 0031-9007. E-ISSN 1079-7114
    R&D Projects: GA MŠk(CZ) LTT17018
    Research Infrastructure: CERN-CZ II - 90104
    Institutional support: RVO:68378271
    Keywords : ATLAS * CERN LHC Coll * Z0: branching ratio: upper limit * sensitivity
    OECD category: Particles and field physics
    Impact factor: 9.185, year: 2021
    Method of publishing: Open access

    A search for lepton-flavor-violating Z→eτZ o e auZ→eτ and Z→μτZ omu auZ→μτ decays with pppppp collision data recorded by the ATLAS detector at the LHC is presented. This analysis uses 139 fb−1^{-1}−1 of Run 2 pppppp collisions at s=13sqrt{s}=13s ​=13 TeV and is combined with the results of a similar ATLAS search in the final state in which the τ auτ-lepton decays hadronically, using the same data set as well as Run 1 data. The addition of leptonically decaying τ auτ-leptons significantly improves the sensitivity reach for Z→ℓτZ oell auZ→ℓτ decays. The Z→ℓτZ oell auZ→ℓτ branching fractions are constrained in this analysis to B(Z→eτ)<7.0×10−6mathcal{B}(Z o e au)<7.0 imes10^{-6}B(Z→eτ)<7.0×10−6 and B(Z→μτ)<7.2×10−6mathcal{B}(Z o mu au)<7.2 imes10^{-6}B(Z→μτ)<7.2×10−6 at 95% confidence level.
    Permanent Link:

    0552879.pdf2493.4 KBCC LicencePublisher’s postprintopen-access
Number of the records: 1  

  This site uses cookies to make them easier to browse. Learn more about how we use cookies.