Elastic vector-meson production at HERA

被引：27
作者：
Cudell, JR
Royen, I
机构：
[1] Inst. de Physique, U. de Liège, Bât. B-5, Sart Tilman
来源：
PHYSICS LETTERS B | 1997年 / 397卷 / 3-4期
关键词：
D O I：
10.1016/S0370-2693(97)00193-7
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We show that the lowest-order QCD calculation in a simple model of elastic vector-meson production does reproduce correctly the ratios of cross sections for rho, phi and J/psi, both in photoproduction and in high-Q(2) quasi-elastic scattering. The dependence of the slopes on the mass of the vector meson is reproduced as well. We examine the lower-energy data, and find that the energy dependence of the cross section does not depend on Q(2), but may depend on m(v). (C) 1997 Elsevier Science B.V.
引用
收藏
页码：317 / 324
页数：8
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