Study of heavy exotic baryon resonances

Abstract

The possible production of the neutral Pc(4380) and Pc(4450) in the J-PARC experiment is discussed. Different spin-parity assignments of the Pc states are considered and differential cross sections of π−p → J/ψp are calculated. Moreover, the strong decays of Pc → J/ψp are estimated based on a ΣcD̄* molecular scenario. Our results disfavor all the P − wave ΣcD̄* assignments, while favor the S − wave ΣcD̄* picture of the two Pc states comparing to the experimental data. In addition, we also analyze the possible JP =3/2− state in Σc*D̄ and Σc*D̄* pictures with heavy quark limit.