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arXiv · 2108.03767

Probing charmonium-like XYZ states in hadron-hadron ultraperipheral collisions and electron-proton scattering

Ya-Ping Xie·Xiao-Yun Wang·Xurong Chen
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Abstract

Exclusive production of charmonium-like XYZ states in hadron-hadron ultraperipheral collisions(UPCs) and electron-proton scattering is studied employing effective Lagrangian method. Total cross sections and rapidity distributions of charmonium-like XYZ states are obtained in hadron-hadron UPCs and electron-proton scattering process. These predictions can be applied to estimate the observed event number of exclusive charmonium-like XYZ states in hadron-hadron UPCs and electron-proton scattering. The results indicate that it is significant to search $X(3872)$ and $Z^+_c(3900)$ in pA UPCs and Electron-Ion Collider in China will be an advantage platform to observe XYZ states in the future.

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Ya-Ping Xie, Xiao-Yun Wang, Xurong Chen. 2021-08-09. Probing charmonium-like XYZ states in hadron-hadron ultraperipheral collisions and electron-proton scattering. https://doi.org/10.1140/epjc%2Fs10052-021-09509-7

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