Lepton number violation in tau lepton decays
Recent studies of novel four-body lepton number violating decays of $\tau$ leptons and neutral $B$ mesons are summarized and updated. These decays are assumed to be enhanced by the exchange of resonant Majorana neutrinos. It is shown that the $\tau^- \to \pi^+l^-l^-\nu_{\tau}$ decay channels, with $...
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Main Authors | , |
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Format | Journal Article |
Language | English |
Published |
30.11.2012
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Subjects | |
Online Access | Get full text |
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Summary: | Recent studies of novel four-body lepton number violating decays of $\tau$
leptons and neutral $B$ mesons are summarized and updated. These decays are
assumed to be enhanced by the exchange of resonant Majorana neutrinos. It is
shown that the $\tau^- \to \pi^+l^-l^-\nu_{\tau}$ decay channels, with $l=e$ or
$\mu$, can provide stronger constraints on the mixing vs. mass parameter space
of resonant Majorana neutrinos than analogous three-body decays of charged $B$
mesons. |
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DOI: | 10.48550/arxiv.1212.0037 |