Two-loop effects in the evolution of non-forward distributions

被引：43

作者：

Belitsky, AV ^{[1
]}

Muller, D

Niedermeier, L

Schafer, A

机构：

[1] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

[2] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia

[3] Univ Leipzig, Inst Theoret Phys, D-04109 Leipzig, Germany

来源：

PHYSICS LETTERS B | 1998年 / 437卷 / 1-2期

关键词：

non-forward distributions; anomalous dimensions; evolution equations; conformal operators;

D O I：

10.1016/S0370-2693(98)00874-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the effects of next-to-leading order corrections on the evolution of the twist-two non-forward parton distribution functions in the flavour non-singlet sector. It is found that the deviation from leading order evolution is small for all values of the parton momentum fraction variable for moderately large values of the scale parameter, (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：160 / 168

页数：9

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