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

UNSPECIFIED (2021) Search for Lepton-Flavor Violation in Z -Boson Decays with τ Leptons with the ATLAS Detector. Physical review letters, 127 (27): 271802. ISSN 1079-7114

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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)

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
?? decay (organic)tellurium compoundsatlas detectorsbranching fractionsconfidence levelsdata setfinal statelepton flavour violationslepton-flavorz bosonsbosonsphysics and astronomy(all) ??
ID Code:
165745
Deposited By:
Deposited On:
08 Feb 2022 15:10
Refereed?:
Yes
Published?:
Published
Last Modified:
14 Feb 2024 01:33