摘要
Exclusive π^(0) electroproduction is analyzed within the handbag approach based on Generalized Parton Distribution(GPDs)factorization.We consider the leading-twist contribution together with the transversity effects.It is shown that the transversity GPDs H_(T) and E_(T) are essential in the description of the π^(0) cross section.Predictions for the future Electron-Ion Collider of China(EicC)energy range are provided.It is found that transversity dominanceσ_(T)>>σ_(L),observed at low energies,is valid up to the EicC energy range.
作者
S.V.Goloskokov
Ya-Ping Xie
Xurong Chen
S.V.Goloskokov;谢亚平;陈旭荣(Laboratory of Theoretical Physics,Joint Institute for Nuclear Research,Dubna 141980,Moscow,Russia;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Quantum Matter,South China Normal University,Guangzhou 510006,China)
基金
Supported by the Chinese Academy of Sciences president's international fellowship initiative(2021VMA0005)
Strategic Priority Research Program of Chinese Academy of Sciences(XDB34030301)。
