On the structure of the virtual Compton amplitude in the generalized Bjorken region:: integral relations

被引：56

作者：

Blümlein, J

Robaschik, D

机构：

[1] DESY, Deutsch Elekt Synchrotron, D-15735 Zeuthen, Germany

[2] Karl Franzens Univ Graz, Inst Theoret Phys, A-8010 Graz, Austria

来源：

NUCLEAR PHYSICS B | 2000年 / 581卷 / 1-2期

关键词：

D O I：

10.1016/S0550-3213(00)00170-X

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

A systematic study is performed of the structure of the twist-2 contributions to the virtual Compton amplitude in deep-inelastic non-forward scattering for general spin states in the non-local light cone expansion. The gauge invariance is proven in this approach for the twist-2 contributions for nonforward scattering. Relations are derived between the contributing non-forward amplitudes. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：449 / 473

页数：25

相关论文

共 55 条

[31] ASYMPTOTICALLY FREE GAUGE THEORIES .1. [J].

GROSS, DJ ;

Wilczek, F .

PHYSICAL REVIEW D, 1973, 8 (10) :3633-3652

[32] LIGHT-CONE STRUCTURE OF CURRENT COMMUTATORS IN GLUON-QUARK MODEL [J].

GROSS, DJ ;

TREIMAN, SB .

PHYSICAL REVIEW D, 1971, 4 (04) :1059-&

[33] THE CORRECT RENORMALIZATION OF THE GLUON OPERATOR IN A COVARIANT GAUGE [J].

HAMBERG, R ;

VANNEERVEN, WL .

NUCLEAR PHYSICS B, 1992, 379 (1-2) :143-171

[34] Off-forward parton distributions [J].

Ji, XD .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1998, 24 (07) :1181-1205

[35] Deeply virtual Compton scattering [J].

Ji, XD .

PHYSICAL REVIEW D, 1997, 55 (11) :7114-7125

[36] Gauge-invariant decomposition of nucleon spin [J].

Ji, XD .

PHYSICAL REVIEW LETTERS, 1997, 78 (04) :610-613

[37]

Larin SA, 1997, NUCL PHYS B, V492, P338

[38] THE NEXT NEXT-TO-LEADING QCD APPROXIMATION FOR NON-SINGLET MOMENTS OF DEEP-INELASTIC STRUCTURE FUNCTIONS [J].

LARIN, SA ;

VANRITBERGEN, T ;

VERMASEREN, JAM .

NUCLEAR PHYSICS B, 1994, 427 (1-2) :41-52

[39] Hard exclusive meson production and nonforward parton distributions [J].

Mankiewicz, L ;

Piller, G ;

Weigl, T .

EUROPEAN PHYSICAL JOURNAL C, 1998, 5 (01) :119-128

[40] Two-loop operator matrix elements calculated up to finite terms [J].

Matiounine, Y ;

Smith, J ;

van Neerven, WL .

PHYSICAL REVIEW D, 1998, 57 (11) :6701-6722

← 1 2 3 4 5 6 →