Inelastic photoproduction of polarized J/Ψ

被引：106

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

页码：4258 / 4274

页数：17

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