NLO corrections to J/ψ+ c + c<overline> photoproduction

被引：0
|
作者：
Feng, Qi-Ming [1 ]
Qiao, Cong-Feng [1 ,2 ]
机构：
[1] Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China
[2] Chinese Acad Sci, Key Lab Vacuum Phys, Beijing 100049, Peoples R China
来源：
PHYSICAL REVIEW D | 2024年 / 110卷 / 09期
基金：
中国国家自然科学基金;
关键词：
QCD CORRECTIONS;
D O I：
10.1103/PhysRevD.110.094047
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Based on the factorization framework of nonrelativistic quantum chromodynamics, we study the associated J/ jr + c + c<overline> photoproduction process at next-to-leading order (NLO) in as and leading order (LO) in the velocity expansion. The NLO (LO) total cross section for HERA is sigma HERA tot = 0.118(0.074) nb and for EIC is sigma EIC tot = 0.046(0.027) nb. The differential cross sections in p 2 T , W, and z are presented. The results indicate that the next-to-leading order corrections are substantial, and testable in experiment.
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页数：7
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