Evidence for the rare decay ${\Sigma }^{+}\to p{\mu }^{+}{\mu }^{-}$

LHCb collaboration, R. Aaij, B. Adeva +791

A search for the rare decay ${\Sigma }^{+}\to p{\mu }^{+}{\mu }^{-}$ is performed using $pp$ collision data recorded by the LHCb experiment at centre-of-mass energies $\sqrt{s}=7$ and $8$ TeV, corres…