Photoproduction of J/psi in the forward region

被引：45
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
收藏
页码：5844 / 5850
页数：7
相关论文
共 36 条
[31]   IMPROVED NONRELATIVISTIC QCD FOR HEAVY-QUARK PHYSICS [J].
LEPAGE, GP ;
MAGNEA, L ;
NAKHLEH, C ;
MAGNEA, U ;
HORNBOSTEL, K .
PHYSICAL REVIEW D, 1992, 46 (09) :4052-4067
[32]  
LIM JN, 1995, P 27 INT C HIGH EN P
[33]   PINNING DOWN THE GLUE IN THE PROTON [J].
MARTIN, AD ;
STIRLING, WJ ;
ROBERTS, RG .
PHYSICS LETTERS B, 1995, 354 (1-2) :155-162
[34]   PARTON DISTRIBUTIONS FOR LOW Q(2) [J].
MARTIN, AD ;
STIRLING, WJ ;
ROBERTS, RG .
PHYSICAL REVIEW D, 1995, 51 (09) :4756-4762
[35]   PARTON DISTRIBUTIONS OF THE PROTON [J].
MARTIN, AD ;
STIRLING, WJ ;
ROBERTS, RG .
PHYSICAL REVIEW D, 1994, 50 (11) :6734-6752
[36]  
RYSKIN MG, HEPPH9511228
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