大质量部分子模型中极化光子结构函数 $g_1^\gamma(x,Q^2)$ 的 NLO 计算
高能物理 - 唯象学
2015-05-30 v2
摘要
我们在大质量部分子模型中研究极化实光子结构函数 的单胶子交换（）修正。我们采用基于 Cutkosky 规则和将费曼积分约化为主积分的技术。NLO 贡献在大 区域显著，且由于库仑奇异性，在大质量夸克对产生的阈值处不消失。我们发现 的第一矩求和规则在 NLO 精度下成立。
引用
@article{arxiv.1110.2625,
title = {The polarized photon structure function $g_1^\gamma(x,Q^2)$ in massive parton model in NLO},
author = {Norihisa Watanabe and Yuichiro Kiyo and Ken Sasaki},
journal= {arXiv preprint arXiv:1110.2625},
year = {2015}
}
备注
11 pages, 4 figures; An overall sign of the NLO contribution has been changed. Fig.3 and 4 were replaced by the new ones. As a result, the first sentence in the paragraph just below Eq.(14) was corrected. The minus sign was inserted into the r.h.s of the equation for delta just below Eq.(15). The conclusions are unchanged