The effect of hidden-charm strange pentaquarks Pcs on the K?p→J/ψΛ reaction

초록

We present a recent investigation on the production of Pcs(4459) in the exclusive K?p→J/ψΛ reaction using both the effective Lagrangian and Regge approaches. We assume six different spin and parity assignments, i.e., 1/2±, 3/2± and 5/2± to the newly found Pcs. The total and differential cross sections for the K?p→J/ψΛ reaction are calculated. We examine the dependence of the results on different assignments of JP for Pcs.