Photoproduction of J/psi in the forward region

被引：43

作者：

Amundson, J

Fleming, S

Maksymyk, I

机构：

[1] UNIV WISCONSIN,DEPT PHYS,MADISON,WI 53706

[2] UNIV TEXAS,DEPT PHYS,THEORY GRP,AUSTIN,TX 78712

来源：

PHYSICAL REVIEW D | 1997年 / 56卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.56.5844

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the phenomenology of fixed-target elastic J/psi photoproduction in the nonrelativistic QCD (NRQCD) factorization formalism. Our goal is to test an essential feature of this formalism-the color-octet mechanism. We obtain an order-of-magnitude estimate for a certain linear combination of NRQCD color-octet matrix elements. Our estimate is consistent with other empirical determinations and with the upsilon-scaling rules of NRQCD.

引用

页码：5844 / 5850

页数：7

共 36 条

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