Search for $D^{\ast }(2007{)}^0\to {\mu }^{+}{\mu }^{-}$ in $B^{-}\to {\pi }^{-}{\mu }^{+}{\mu }^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1047

The very rare $D^{\ast }(2007{)}^0\to {\mu }^{+}{\mu }^{-}$ decay is searched for by analysing $B^{-}\to {\pi }^{-}{\mu }^{+}{\mu }^{-}$ decays. The analysis uses a sample of beauty mesons produced in proton-proton collisions…