${\bar B_s} \to μ^+ μ^-$ decay in the Randall-Sundrum model

Details ${\bar B_s} \to μ^+ μ^-$ decay in the Randall-Sundrum model ${\bar B_s} \to μ^+ μ^-$ decay in the Randall-Sundrum model

2006-05-22

arxiv.org/abs/hep-ph/0605233v4

Phys.Rev. D74 (2006) 074011

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, one tex file, 6 eps and 1 ps figures. Discussion on radion signal is made and few more references are added. Accepte

Scientific paper

10.1103/PhysRevD.74.074011

We investigate the ${\bar B_s} \to \mu^+ \mu^-$ decay in the presence of a light stabilized radion in Randall-Sundrum model. The branching ratio $BR({\bar B_s} \to \mu^+ \mu^-)$ in the standard model is found to be $3.17 \times 10^{-9}$ (two order smaller than the experimental upper bound) and raises the question whether some new physics can play a crucial role or not. We found that for a reasonable range of parameters (i.e. radion mass $m_\phi$ and radion vev $\vphi$), the above deficit between the experimental bound and the standard model result can well be accomodated. Using this upper bound on $BR({\bar B_s} \to \mu^+ \mu^-)$, we obtain the lower bound on $\vphi$.

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