Abstract
A search for lepton flavour number violating Z0 decays in the channels Z 0 → μτ, Z 0 → eτ, Z 0 → eμ, using the DELPHI detector with data collected during the 1991–94 LEP runs, is described. No signal was found. Upper limits at 95% confidence level for the respective branching fractions of 1.2 × 10−5, 2.2 × 10−5, and 0.25 × 10−5, were obtained.
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DELPHI Collaboration. Search for lepton flavour number violating Z0- decays. Z Phys C - Particles and Fields 73, 243–251 (1997). https://doi.org/10.1007/s002880050313
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DOI: https://doi.org/10.1007/s002880050313