Search for B_s to mu^+ mu^- and B^0 to mu^+ mu^- decays

Details Search for B_s to mu^+ mu^- and B^0 to mu^+ mu^- decays Search for B_s to mu^+ mu^- and B^0 to mu^+ mu^- decays

2012-03-18

arxiv.org/abs/1203.3976v1

Physics

High Energy Physics

High Energy Physics - Experiment

Submitted to the Journal of High Energy Physics

Scientific paper

A search for the rare decays B_s to mu+ mu- and B^0 to mu^+ mu^- is performed in pp collisions at sqrt(s) = 7 TeV, with a data sample corresponding to an integrated luminosity of 5 inverse femtobarns collected by the CMS experiment at the LHC. In both decays, the number of events observed after all selection requirements is consistent with the expectation from background plus standard model signal predictions. The resulting upper limits on the branching fractions are Br(B_s to mu^+ mu^-) < 7.7E-9 and Br(B^0 to mu^+ mu^-) < 1.8E-9 at 95% confidence level.

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