First observation of the rare purely baryonic decay $B^0\to p\bar{p}$

LHCb collaboration, R. Aaij, B. Adeva +802

The first observation of the decay of a $B^0$ meson to a purely baryonic final state, $B^0\to p\bar{p}$, is reported. The proton-proton collision data sample used was collected w…