Evidence for the rare decay $Σ^+ \to p μ^+ μ^-$
R. Aaij, B. Adeva, M. Adinolfi, Z. Ajaltouni et autres
A search for the rare decay Σ^{+}→pμ^{+}μ^{-} is performed using pp collision data recorded by the LHCb experiment at center-of-mass energies sqrt[s]=7 and 8 TeV, corresponding to an integrated luminosity of 3 fb^{-1}. An excess of events is observed with respect to …