Regular Article - Theoretical Physics
Effect of FCNC mediated Z boson on lepton flavor violating decays
School of Physics, University of Hyderabad, Hyderabad, 500 046, India
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Revised: 17 March 2011
Published online: 2 May 2011
We study the three body lepton flavor violating (LFV) decays μ −→e − e + e −, and the semileptonic decay τ→μφ in the flavor changing neutral current (FCNC) mediated Z boson model. We also calculate the branching ratios for LFV leptonic B decays, B d,s →μe, B d,s →τe, B d,s →τμ and the conversion of muon to electron in Ti nucleus. The new physics parameter space is constrained by using the experimental limits on μ −→e − e + e − and τ −→μ − μ + μ −. We find that the branching ratios for τ→eee and τ→μφ processes could be as large as and . For other LFV B decays the branching ratios are found to be too small to be observed in the near future.
© Springer-Verlag / Società Italiana di Fisica, 2011