Search for B(0)(s)→μ(+)μ(−) decays at D0

Abstract

We report results from a search for the decay B(0)(s)→μ(+)μ(−) using 1.3 fb(−1) of pp-bar collisions at 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±0.99, and set an upper limit on the branching fraction of B(B(0)(s)→μ(+)μ(−))<1.2×10(−7) at the 95% C.L.