Search for Lepton-Flavor Violation in Z -Boson Decays with τ Leptons with the ATLAS Detector

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dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbbott, D.C.
dc.contributor.authorAbed Abud, A.
dc.contributor.authorAbeling, K.
dc.contributor.authorAbhayasinghe, D.K.
dc.contributor.authorAbidi, S.H.
dc.contributor.authorAbramowicz, H.
dc.contributor.authorAbreu, H.
dc.contributor.authorAbulaiti, Y.
dc.contributor.authorAbusleme Hoffman, A.C.
dc.contributor.authorAcharya, B.S.
dc.contributor.authorAchkar, B.
dc.contributor.authorAdam, L.
dc.contributor.authorAdam Bourdarios, C.
dc.contributor.authorAdamczyk, L.
dc.contributor.authorAdamek, L.
dc.contributor.authorAdelman, J.
dc.contributor.authorAdiguzel, A.
dc.contributor.authorAdorni, S.
dc.contributor.authorAdye, T.
dc.contributor.authorAffolder, A.A.
dc.contributor.authorAfik, Y.
dc.contributor.authorAgapopoulou, C.
dc.contributor.authorAgaras, M.N.
dc.contributor.authorAgarwala, J.
dc.contributor.authorAggarwal, A.
dc.contributor.authorAgheorghiesei, C.
dc.contributor.authorAguilar-Saavedra, J.A.
dc.contributor.authorAhmad, A.
dc.contributor.authorAhmadov, F.
dc.contributor.authorAhmed, W.S.
dc.contributor.authorAi, X.
dc.contributor.authorAielli, G.
dc.contributor.authorAkatsuka, S.
dc.contributor.authorAkbiyik, M.
dc.contributor.authorÅkesson, T.P.A.
dc.contributor.authorAkimov, A.V.
dc.contributor.authorAl Khoury, K.
dc.contributor.authorAlberghi, G.L.
dc.contributor.authorAlbert, J.
dc.contributor.authorAlconada Verzini, M.J.
dc.contributor.authorAlderweireldt, S.
dc.contributor.authorAleksa, M.
dc.contributor.authorAleksandrov, I.N.
dc.contributor.authorAlexa, C.
dc.contributor.authorAlexopoulos, T.
dc.contributor.authorAlfonsi, A.
dc.contributor.authorAlfonsi, F.
dc.contributor.authorAlhroob, M.
dc.contributor.authorAli, B.
dc.contributor.authorAli, S.
dc.contributor.authorAliev, M.
dc.contributor.authorAlimonti, G.
dc.contributor.authorAllaire, C.
dc.contributor.authorAllbrooke, B.M.M.
dc.contributor.authorAllport, P.P.
dc.contributor.authorAloisio, A.
dc.contributor.authorAlonso, F.
dc.contributor.authorAlpigiani, C.
dc.date.accessioned2024-12-26T14:15:28Z
dc.date.available2024-12-26T14:15:28Z
dc.date.issued2021-12-31
dc.descriptionIndexación: Scopus.
dc.description.abstractA 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. © 2021 CERN.
dc.description.urihttps://journals-aps-org.recursosbiblioteca.unab.cl/prl/abstract/10.1103/PhysRevLett.127.271801
dc.identifier.citationPhysical Review Letters, Volume 127, Issue 27, 31 December 2021, Article number 271801
dc.identifier.doi10.1103/PhysRevLett.127.271801
dc.identifier.issn0031-9007
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/62717
dc.language.isoen
dc.publisherAmerican Physical Society
dc.rights.licenseAttribution 4.0 International CC BY 4.0 Deed
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectTellurium compounds
dc.subjectATLAS detectors
dc.subjectBranching fractions
dc.subjectConfidence levels
dc.subjectData set
dc.subjectFinal state
dc.subjectLepton flavour violations
dc.subjectLepton-flavor
dc.subjectZ Bosons
dc.titleSearch for Lepton-Flavor Violation in Z -Boson Decays with τ Leptons with the ATLAS Detector
dc.typeArtículo
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