Search for $A^{\prime }\to {\mu }^{+}{\mu }^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +905

Searches are performed for both prompt-like and long-lived dark photons, $A^{\prime }$, produced in proton-proton collisions at a center-of-mass energy of 13 TeV. These searches look for $A…