Search for $B_s o mu^_s16 mu^-$ at D0

Abstract

We report results from a search for the decay Bs --> mu_s16 mu- using 1.3/fb of pbar p collisions at sqrt(s)= 1.96 TeV collected by the D0 experiment at the Fermilab Tevatron Collider. We find two candidate events, consistent with the expected background of 1.24 _s16/- 0.99, and set an upper limit on the branching fraction of B(Bs --> mu_s16 mu-) < 1.2e-7 at the 95% C.L.