Double exotic state productions in pion and kaon induced reactions

In the present work, we investigate the pion/kaon induced P-c/P-cs productions with Z(c) state off proton target with an effective Lagrangian approach. Our estimations indicate that the cross sections depend on the model parameters and beam energies, in particular, the cross sections for pi p -> Z(c)(3900) P-c(4312) and pi p -> Z(c)(3900) P-c(4440) are similar and can reach up to 10 nb, while those for pi p -> Z(c)(3900) P-c(4457) can be 30 nb. As for K-p -> Z(cs) (3985) P-c, the cross sections are about 2.5 times smaller than those for pi p -> Z(c)(3900)P-c. The discussed processes in the present work, especially pi p -> Z(c)(3900) P-c(4457) process, may be accessible by the high-energy pion and kaon beams in the facilities of J-PARC and COMPASS.

Automated summary

This study investigates the pion/kaon induced P-c/P-cs productions on proton target with Z(c) state using an effective Lagrangian approach, showing that cross sections vary depending on model parameters and beam energies. Specifically, the cross sections for pi p -> Z(c)(3900) P-c(4312) and pi p -> Z(c)(3900) P-c(4440) are similar and can reach up to 10 nb, while that for pi p -> Z(c)(3900) P-c(4457) can be 30 nb. The discussed processes, especially the pi p -> Z(c)(3900) P-c(4457) process, may be observable by high-energy pion and kaon beams at J-PARC and COMPASS facilities.