Search for Lepton Flavour Violation in e+e- Collisions at sqrt(s) = 189 - 209 GeV

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dc.creatorThe OPAL collaboration
dc.creatorAbbiendi, G.
dc.date2001-09-10
dc.date.accessioned2026-07-07T12:01:38Z
dc.date.available2026-07-07T12:01:38Z
dc.descriptionWe search for lepton flavour violating events (e mu, e tau and mu tau) that could be directly produced in e+e- annihilations, using the full available data sample collected with the OPAL detector at centre-of-mass energies between 189 GeV and 209 GeV. In general, the Standard Model expectations describe the data well for all the channels and at each sqrt(s). A single e mu event is observed where according to our Monte Carlo simulations only 0.019 events are expected from Standard Model processes. We obtain the first limits on the cross-sections sigma(e+e- -> e mu, e tau and mu tau) as a function of sqrt(s) at LEP2 energies.
dc.description15 pages, 4 figures, Accepted by Physics Letters B
dc.identifierhttps://arxiv.org/abs/hep-ex/0109011
dc.identifierhttp://arxiv.org/abs/hep-ex/0109011
dc.identifierPhys.Lett.B519:23-32,2001
dc.identifierdoi:10.1016/S0370-2693(01)01086-3
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207160
dc.subjectHigh Energy Physics - Experiment
dc.titleSearch for Lepton Flavour Violation in e+e- Collisions at sqrt(s) = 189 - 209 GeV
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