Tuesday, February 26, 2013

1302.6166 (S. Sahoo et al.)

Effect of both Z and Z^prime - mediated flavor-changing neutral currents
on $B_s$ decays into $tau^+tau^-$
   [PDF]

S. Sahoo, D. Banerjee, M. Kumar, S. Mohanty
In recent years, $B_s$ decays into $tau^+tau^-$ has attracted a lot of attention since it is very sensitive to the structure of standard model (SM) and potential source of new physics beyond SM. In this paper, we study the effect of both Z and -mediated flavor-changing neutral currents on the $B_s$ decays into $tau^+tau^-$. We find the branching ratio of $B_s$ decays into $tau^+tau^-$ is enhanced relative to SM prediction, which would help to explain the recent observed CP-violation from like-sign dimuon charge asymmetry in the B system.
View original: http://arxiv.org/abs/1302.6166

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