Relating B S Mixing and B S to mu+mu- with New Physics.

摘要

We perform a study of the standard model fit to the mixing quantities (Delta)M(sub B(sub s)), and (Delta)(Lambda)(sub B(sub s))/(Delta)M(sub B(sub s)) in order to bound contributions of new physics (NP) to B(sub s) mixing. We then use this to explore the branching fraction of B(sub s) (yields) (mu)(sup +)(mu)(sup -) in certain models of NP. In most cases, this constrains NP amplitudes for B(sub s) (yields) (mu)(sup +)(mu)(sup -) to lie below the standard model component.