The spin structure of a polarized photon

被引：44
作者：
Bass, SD
Brodsky, SJ
Schmidt, I
机构：
[1] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany
[2] Stanford Univ, Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA
[3] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile
来源：
PHYSICS LETTERS B | 1998年 / 437卷 / 3-4期
关键词：
D O I：
10.1016/S0370-2693(98)00917-4
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We show that the first moment of the spin-dependent structure function g(1)(gamma)(x, Q(2)) of a real photon vanishes independent of the momentum transfer Q(2) it is probed with. This result is non-perturbative: it holds to all orders in perturbation theory in abelian and non-abelian gauge theory and at every twist. (C) 1998 Elsevier Science B.V. All rights reserved.
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页码：417 / 424
页数：8
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