https://doi.org/10.1140/epjc/s10052-021-09509-7
Regular Article - Theoretical Physics
Probing charmonium-like XYZ states in hadron–hadron ultraperipheral collisions and electron–proton scattering
1
Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
2
Department of Physics, Lanzhou University of Technology, 730050, Lanzhou, China
3
University of Chinese Academy of Sciences, 100049, Beijing, China
4
Institute of Quantum Matter, South China Normal University, 510006, Guangzhou, China
Received:
12
April
2021
Accepted:
29
July
2021
Published online:
7
August
2021
Exclusive production of charmonium-like XYZ states in hadron–hadron ultraperipheral collisions (UPCs) and electron–proton scattering are studied employing the effective Lagrangian method. Total cross sections and rapidity distributions of charmonium-like XYZ states are obtained in hadron–hadron UPCs and the 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 
in pA UPCs, and the Electron–Ion Collider in China will be an advantageous platform to observe XYZ states in the future.
© The Author(s) 2021
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Funded by SCOAP3
