Regular Article - Theoretical Physics
NLO QCD corrections to exclusive quarkonium-pair production in photon–photon collision
School of Physics, University of Chinese Academy of Sciences, Yuquan Road 19A, 100049, Beijing, China
2 CAS Key Laboratory of Vacuum Physics, 100049, Beijing, China
Accepted: 22 August 2020
Published online: 1 September 2020
We calculate the next-to-leading order (NLO) quantum chromodynamics (QCD) corrections to the exclusive processes , with , or , in the framework of non-relativistic QCD (NRQCD) factorization formalism. The cross sections at the SuperKEKB electron–positron collider, as well as at the future colliders, like the circular electron positron collider (CEPC) and the international linear collider (ILC), are evaluated. Numerical result indicates that the processes for -pair production and -pair production are hopefully observable at the Belle II detector within the next decade.
© The Author(s) 2020
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