Singlet g2 structure function in the next-to-leading order -: art. no. 094012

被引：27

作者：

Belitsky, AV ^{[1
]}

Ji, XD

Lu, W

Osborne, J

机构：

[1] SUNY Stony Brook, CN Yang Inst Theoret Phys, Stony Brook, NY 11794 USA

[2] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW D | 2001年 / 63卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.63.094012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Following a previous study of the one-loop factorization of the nonsinglet g(2) structure function of the nucleon, we present in this paper the next-to-leading order coefficient functions in the singlet sector. To obtain the result, the partonic processes of virtual Compton scattering off two and three on-shell gluons are calculated. A key step in achieving the correct factorization is to separate the correct twist-two contribution. The Burkardt-Cottingham sum rule is nominally satisfied at this order.

引用

页数：6

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