Selected strong decays of pentaquark State Pc(4312) in a chiral constituent quark model

The newly confirmed pentaquark state Pc(4312) has been treated as a weakly bound (ΣcD¯) state by a well-established chiral constituent quark model and by a dynamical calculation on quark degrees of freedom where the quark exchange effect is accounted for. The obtained mass 4308 MeV agrees with data. In this work, the selected strong decays of the Pc(4312) state are studied with the obtained wave function. It is shown that the width of the ΛcD¯∗ decay is overwhelmed and the branching ratios of the pηc and pJ/ψ decays are both less than 1 percentage.