Search for lepton flavor violation in Z<sup>0 </sup>decays

L3 Collaboration

doi:10.1016/0370-2693(91)90117-9

Scientific article

English

Search for lepton flavor violation in Z⁰decays

ContributorsL3 Collaboration

CollaboratorsBourquin, Maurice; Burger, William; Duchesneau, Dominique Robert; Field, John; Forconi, Gilles Raymond; Goujon, Didier; Kienzle, Maria Novella; Lalieu, Vincent Marc; Perrier, Jacques; Produit, Nicolas

; Wenninger, Joerg Horst

Published inPhysics letters. B, vol. 271, no. 3-4, p. 453-460

Publication date1991

Abstract

We have searched for lepton flavour violation in Z 0 boson decays into lepton pairs, Z 0 →μτ, Z 0 →eτ, and Z 0 →eμ. The data sample is based on an integrated luminosity of 10.4 pb -1 corresponding to 370 000 Z 0 's produced. We obtain upper limits on the branching ratios of 4.8×10 -5 for the μτ, 3.4×10 -5 for the eτ and 2.4×10 -5 for the eμ decay modes at the 95% confidence level.

Keywords

Electron positron: colliding beams
Colliding beams: electron positron
Electron positron: annihilation
Annihilation: electron positron
Z0: electroproduction
Electroproduction: Z0
Z0: leptonic decay
Leptonic decay: Z0
Lepton: pair production
Pair production: lepton
Electron number: violation
Muon number: violation
Z0: branching ratio
Upper limit
L3
Experimental results
CERN LEP Stor
Z0 --> tau muon
Z0 --> tau electron
Z0 --> muon electron
88.2-94.2 GeV-cms

Affiliation entities

Citation (ISO format)

L3 Collaboration. Search for lepton flavor violation in Z⁰decays. In: Physics letters. B, 1991, vol. 271, n° 3-4, p. 453–460. doi: 10.1016/0370-2693(91)90117-9

Article (Published version)

Identifiers

PID : unige:185984
DOI : 10.1016/0370-2693(91)90117-9

Additional URL for this publicationhttps://linkinghub.elsevier.com/retrieve/pii/0370269391901179

Journal ISSN0370-2693

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Search for lepton flavor violation in Z0 decays

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Search for lepton flavor violation in Z⁰decays