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

页码：99 / 104

页数：6

共 50 条

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[8] Fragmentation contributions to J/ψ photoproduction at HERA
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