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Measurement of the Michel parameters in leptonic $\tau$ decays with the OPAL detector at LEP
An upper limit for the tau -neutrino mass has been determined from the decay tau to 5 pi /sup +or-/ nu /sub tau / using data collected with the OPAL detector from 1991 to 1995 in e/sup +/e/sup -/ collisions at square root (s) approximately=M/sub Z0/. A limit of 43.2 MeV at 95Ø.000554330L is obtained...
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| Lenguaje: | eng |
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Bonn Univ.
1998
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| Acceso en línea: | http://cds.cern.ch/record/420436 |