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Inelastic photoproduction of polarized J/Ψ

被引：105
作者：
Beneke, M [1 ]
Kramer, M
Vanttinen, M
机构：
[1] CERN, Div Theory, CH-1211 Geneva 23, Switzerland
[2] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England
[3] NORDITA, DK-2100 Copenhagen O, Denmark
来源：
PHYSICAL REVIEW D | 1998年 / 57卷 / 07期
关键词：
D O I：
10.1103/PhysRevD.57.4258
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the polar and azimuthal decay angular distribution of J/psi mesons in photoproduction experiments as functions of the inelasticity variable z and transverse momentum p(t). Future measurements of decay angular distributions at the DESY ep collider HERA will provide a new test of theoretical approaches to factorization between perturbation theory and quarkonium bound-state dynamics and shed light on the color-octet production fraction in various regions of z and p(t). [S0556-2821(98)03795-9].
引用
收藏
页码：4258 / 4274
页数：17
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