Twist-3 effects for polarized virtual photon structure function $g_2^\gamma$
高能物理 - 唯象学
2009-11-07 v1
摘要
We investigate twist-3 effects in the polarized virtual photon. The structure function , which exists only for the virtual photon target and can be measured in future polarized collider experiments, receives both twist-2 and twist-3 contributions. The twist-3 part is analyzed in pure QED interaction as well as in LO QCD. We find the twist-3 contribution is appreciable for the photon in contrast to the nucleon case.
引用
@article{arxiv.hep-ph/0211130,
title = {Twist-3 effects for polarized virtual photon structure function $g_2^\gamma$},
author = {Ken Sasaki},
journal= {arXiv preprint arXiv:hep-ph/0211130},
year = {2009}
}
备注
5 pages, 4 figures, Talk presented at the International Symposium Radcor 2002 and Loops and Legs 2002, September 8-13, Kloster Banz, Germany