Resolved photoproduction of J/ψ at HERA

被引：0
|
作者：
Li, YD [1 ]
Liu, LS [1 ]
机构：
[1] Hua Zhong Normal Univ, Inst Particle Phys, Wuhan 430070, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 1998年 / 29卷 / 01期
关键词：
J/psi photoproduction; quark fragmentation;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The J/psi, photoproduction via resolved photon process at HERA is studied. it turns out that the J/psi production is dominated by the leading order production process in low p(t) range (p(t) < 4 GeV), while in the high p(t) range (p(t) > 4 GeV), it is dominated by the fragmentation processes. The difference of J/psi cross section caused by using GRV and DO photon structure functions is large, especially in the large negative rapidity range. Hence it is possible to use the J/psi photoproduction process to probe the parton distribution of photon and proton, as well as to test the gluon and heavy quark fragmentation of J/psi, from the perturbative QCD.
引用
收藏
页码：99 / 104
页数：6
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