中国物理学会高能物理分会第十一届全国会员代表大会暨学术年会

Coherent vector meson photoproduction plays important role for investigating the partionic composition of protons and nuclear targets. Especially, it provides a novel tool to prob the gluonic structure of nuclei. In this talk, we present a theoretical framework to calculate the photoproduction cross section of vector mesons. In this framework, we derive an equivalent approximate photon distribution in coordinate space based on QED, which overcomes the weakness of traditional EPA at large virtuality of photon. The vector meson dominance model together with quantum Glauber approach are employed in the calculation. We will show the calculated rapidity and pt distribution of Jpsi photoprouction for both ep and eAu collisions at the planned energy sets at future EIC and EicC, which could served as event generator for detector design and physics opportunity projection.