https://doi.org/10.1140/epjc/s10052-011-1625-2
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
* e-mail: rmsp@uohyd.ernet.in
Received:
4
February
2011
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
