par Abreu, Pedro;Bertrand, Daniel ;Bricman, Claude ;Vander Velde, Catherine ;Wickens, John H. ; [et al.]
Référence Physics letters. Section B, 298, 1-2, page (247-256)
Publication Publié, 1993
Article révisé par les pairs
Résumé : A search for lepton flavour violation through the decays Z0 → eμ, eτ and μτ was made with the DELPHI detector at LEP, using a sample corresponding to an integrated luminosity of 11.2 pb-1. The number of candidates was consistent with the estimated background. The upper limit on the branching ratio (at 95% confidence level) for Z0 → eμ was 3.2 × 10-5, for Z0 → eτ was 10.8 × 10-5 and for Z0 → μτ was 13.5 × 10-5.