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- W2945791044 abstract "As one of the simplest hadronic processes, $gammagammarightarrowpi^+pi^-,K^+K^-$ reactions could be a testing ground for our understanding of hadronic dynamics, and will be studied with high precision at Belle-II in the near future. In this paper, we revisit these processes in the modified perturbative QCD approach, in which transverse degrees of freedom as well as Sudakov suppression are taken into account. The twist-2 and twist-3 light-cone wave functions of pion and kaon mesons are used as the candidate forms for the nonperturbative dynamical inputs. It is shown that both the intrinsic transverse momentum and the twist-3 corrections can give sizable contributions to the cross sections at the intermediate energy region and should be kept for a better understanding of the two-photon processes." @default.
- W2945791044 created "2019-05-29" @default.
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- W2945791044 date "2019-05-16" @default.
- W2945791044 modified "2023-10-16" @default.
- W2945791044 title "Two-photon processes $gammagammarightarrowpi^+pi^-,K^+K^-$ in the modified perturbative QCD approach" @default.
- W2945791044 hasPublicationYear "2019" @default.
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