期刊论文

Cai, YB

英文

Nuclear Physics A

0375-9474

2024

1042

122810

10.1016/j.nuclphysa.2023.122810

CRediT authorship contribution statement Wenchang Xiang: Conceptualization, Data curation, Methodology, Formal analysis, acquisition, Project administration, Writing – Original draft preparation. Yanbing Cai: Methodology, Formal analysis, acquisition, Investigation, Visualization, Writing – Original draft preparation, Writing – review & editing. Daicui Zhou: acquisition, Verification, Investigation.

本校为其他机构

We show within proton hot spot picture that the exclusive vector meson production in electron-proton deeply inelastic scattering is sensitive to the individual width of the constituent quarks of the proton. For comparison, we calculate the exclusive J/Psi production cross-sections in three cases, B-u >= B-d, B-u < B-d and B-u not equal B-u(' )not equal B-d, where the B-u, B-u(') and Bd denote the widths of two up quarks and a down quark. We find that only results calculated with B-u >= B-d can give a reasonable description of the exclusive J/Psi production cross-section data at HERA. To test t...