Searches for CP violation in beauty baryons at LHCb

The understanding of CP-violating mechanisms in the baryon sector is of particular importance in light of the observed matter-antimatter asymmetry in the Universe, but few studies have been performed in baryon decays to date. The searches for CP violation in beauty baryons performed by the LHCb Collaboration on LHC Run I data are reported, including the first evidence for CP violation in a baryon decay, Λ 0b → pπ − π + π − . Prospects for LHC Run II are also outlined.