Search for the rare decay Bs0->mu+mu-
Abstract
We present the results of a search for the flavor changing neutral current decay Bs0->mu+mu- using 6.1 fb-1 of ppbar collisions at sqrt(s) = 1.96 TeV collected by the D0 experiment at the Fermilab Tevatron Collider. The observed number of Bs0 candidates is consistent with background expectations. The resulting upper limit on the branching fraction is BR(Bs0->mu+mu-) < 5.1 x 10-8 at the 95% C.L. This limit is a factor of 2.4 better than that of the previous D0 analysis and the best limit to date.
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