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New constraints on the $\tau$ neutrino mass and fourth generation mixing
We present new constraints on the mass $m_{\nu_\tau}$ of the tau neutrino and its mixing with a fourth generation neutrino. From an analysis of the partial widths of tau lepton decays we obtain the following bounds at the 90% confidence level: $m_{\nu_\tau} < 32$ MeV and $\sin^2\theta < 0.007$...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
1997
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/340961 |