  We perform a search for the rare decay Bs->mumu using data collected by the
D0 experiment at the Fermilab Tevatron Collider. This result is based on the
full D0 Run II dataset corresponding to 10.4 fb^(-1) of ppbar collisions at
sqrt(s) = 1.96 TeV. We use a multivariate analysis to increase the sensitivity
of the search. In the absence of an observed number of events above the
expected background, we set an upper limit on the decay branching fraction of
BR(Bs->mumu) < 15x10^(-9) at the 95% C.L.
