Effect of off-diagonal parton distributions in diffractive vector mason electroproduction

被引：78

作者：

Martin, AD ^{[1
]}

Ryskin, MG

机构：

[1] Univ Durham, Dept Phys, Durham DH1 3LE, England

[2] Petersburg Nucl Phys Inst, SU-18850 Gatchina, Russia

来源：

PHYSICAL REVIEW D | 1998年 / 57卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.57.6692

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a simple physical description of the off-diagonal gluon distribution g(x,x',Q(2)) and splitting function P-gg(x,x') which enter the amplitude for diffractive vector mason production. We study the off-diagonal effects both on the evolution in Q(2) and on the input distribution. We predict the ratio R of the off-diagonal to the diagonal gluon density, x'g(x,x',Q(2))/xg(x,Q(2)), as a function of the kinematic variables.

引用

页码：6692 / 6700

页数：9

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