https://doi.org/10.1140/epjc/s10052-023-11615-7
Regular Article - Theoretical Physics
Exclusive photoproduction of 
and bottomonia pairs
1
Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile
2
Centro Científico-Tecnológico de Valparaíso, Casilla 110-V, Valparaíso, Chile
Received:
6
January
2023
Accepted:
14
May
2023
Published online:
1
June
2023
In this paper we analyze the photoproduction of heavy quarkonia pairs which include b-quarks, such as 
-mesons or charmonium-bottomonium pairs. Compared to charmonia pair production, these channels get contributions only from some subsets of diagrams, and thus allow for a better theoretical understanding of different production mechanisms. In contrast to the production of hidden-flavor quarkonia, for the production of 
-meson pairs there are no restrictions on internal quantum numbers in the suggested mechanisms. Using the Color Glass Condensate approach, we estimated numerically the production cross-sections in the kinematics of the future electron–hadron colliders and the ultraperipheral collisions at LHC. We found that the production of 
and meson pairs are the most promising channels for studies of quarkonia pair production.
© The Author(s) 2023
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