Regular Article – Theoretical Physics
Photoproduction of strange hidden-charm and hidden-bottom states
Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
2 University of Chinese Academy of Sciences, 100049, Beijing, China
3 Department of Physics, Yunnan University, 650091, Kunming, China
4 School of Physics, University of Electronic Science and Technology of China, 610054, Chengdu, China
Accepted: 8 January 2021
Published online: 23 February 2021
Recently BESIII collaboration discovered a charged strange hidden-charm state (3985) in the spectrum. A higher state coupling to is expected by SU(3)-flavor symmetry, and their bottom partners are anticipated by heavy quark flavor symmetry. Here we study the photoproduction of these exotic states and investigate carefully the background from Pomeron exchange. Our results indicate that the maximal photoproduction cross section of strange partner is around 1–2 orders of magnitude smaller than that of the corresponding non-strange states. The possibility of searching for them in future electron-ion colliders (EIC) is briefly discussed.
© The Author(s) 2021
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