Possible large CP violation in three-body decays of heavy baryon

We propose a new mechanism which can introduce large CP asymmetries in the phase spaces of three-body decays of heavy baryons. In this mechanism, a large CP   asymmetry is induced by the interference of two intermediate resonances, which subsequently decay into two different combinations of final particles. We apply this mechanism to the decay channel Λb0→pπ0π−, and find that the differential CP   asymmetry can reach as large as 50%50%, while the regional CP   asymmetry can reach as large as 16%16% in the interference region of the phase space.