Theoretical Expectations for Rare and Forbidden Tau Decays
نویسنده
چکیده
In the minimal standard model (SM) with mν = 0, the 3 lepton numbers Le, Lμ, and Lτ are separately conserved. However, given the present neutrino-oscillation data, which imply that neutrinos have mass and mix with one another, the only conserved lepton number is L = Le+Lμ+Lτ if mν is Dirac, and (−1)L if mν is Majorana. As a result, lepton flavor violation must occur in τ decays, which may be classified into 3 groups:
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تاریخ انتشار 2002