One-Loop Factorization of the Nucleon g_2-Structure Function in the Non-Singlet Case
高能物理 - 唯象学
2009-10-31 v3
摘要
We consider the one-loop factorization of the simplest twist-three process: inclusive deep-inelastic scattering of longitudinally-polarized leptons on a transversely-polarized nucleon target. By studying the Compton amplitudes for certain quark and gluon states at one loop, we find the coefficient functions for the non-singlet twist-three distributions in the factorization formula of g_2(x_B,Q^2). The result marks the first step towards a next-to-leading order (NLO) formalism for this transverse-spin-dependent structure function of the nucleon.
引用
@article{arxiv.hep-ph/0006121,
title = {One-Loop Factorization of the Nucleon g_2-Structure Function in the Non-Singlet Case},
author = {Xiangdong Ji and Wei Lu and Jonathan Osborne and Xiaotong Song},
journal= {arXiv preprint arXiv:hep-ph/0006121},
year = {2009}
}
备注
14 pages, revtex4, four figures included, minor changes