Double Exotic States Productions in Pion and Kaon Induced Reactions

Abstract

In the present work, we investigate the production of $P_c$ and $Z_c(3900)/Z_{cs}(3985)$ states in the processes of $\pi p\to Z_c(3900)P_c$/$Kp\to Z_{cs}(3985)P_c$ with an effective Lagrangian approach. Our estimations indicates that the cross sections depends on the model parameters and beam energies, in particular, the cross sections for $\pi p\to Z_c(3900)P_c(4312)$ and $\pi p\to Z_c(3900)P_c(4440)$ are similar and can reach up to 10 nb, while those for $\pi p\to Z_c(3900)P_c(4457)$ can be 30 nb. As for $Kp\to Z_{cs}(3985)P_c$, the cross sections are about 2.5 times smaller than those for $\pi p\to Z_c(3900)P_c$. The discussed processes in the present work, especially $\pi p\to Z_c(3900)P_c(4457)$, may be accessible by the the high-energy pion and kaon beams in the facilities of J-PARC and COMPASS.

arXiv comment9 pages, 6 figures

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