THE SPIN STRUCTURE OF A POLARIZED PHOTON

Authors
BASS SD BRODSKY SJ SCHMIDT I
Citation
Sd. Bass et al., THE SPIN STRUCTURE OF A POLARIZED PHOTON, Physics letters. Section B, 437(3-4), 1998, pp. 417-424
Citations number
36
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
437
Issue
3-4
Year of publication
1998
Pages
417 - 424
Database
ISI
SICI code
0370-2693(1998)437:3-4<417:TSSOAP>2.0.ZU;2-T
Abstract
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 mom entum transfer Q(2) it is probed with. This result is non-perturbative : it holds to all orders in perturbation theory in abelian and non-abe lian gauge theory and at every twist. (C) 1998 Elsevier Science B.V. A ll rights reserved.