Search for the rare decays Bs -> mu+ mu- and B0 -> mu+ mu-

Details Search for the rare decays Bs -> mu+ mu- and B0 -> mu+ mu- Search for the rare decays Bs -> mu+ mu- and B0 -> mu+ mu-

2011-12-07

arxiv.org/abs/1112.1600v3

Physics Letters B 708 (2012) 55-67

Physics

High Energy Physics

High Energy Physics - Experiment

6+19 pages, 9 figures; minor changes; matches version accepted in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2012.01.038

A search for the decays Bs -> mu+ mu- and B0 -> mu+ mu- is performed with 0.37 fb^-1 of pp collisions at sqrt{s} = 7 TeV collected by the LHCb experiment in 2011. The upper limits on the branching fractions are BR (Bs -> mu+ mu-) < 1.6 x 10^-8 and BR(B0 -> mu+ mu-) < 3.6 x 10^-9 at 95% confidence level. A combination of these results with the LHCb limits obtained with the 2010 dataset leads to BR (Bs -> mu+ mu-) < 1.4 x 10^-8 and BR (B0 -> mu+ mu-) < 3.2 x 10^-9 at 95% confidence level.

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