Regular Article - Theoretical Physics
Probing charmonium-like XYZ states in hadron–hadron ultraperipheral collisions and electron–proton scattering
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
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
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Funded by SCOAP3