Sivers 函数下一阶 leading 阶的共线匹配
高能物理 - 唯象学
2019-06-26 v2
摘要
我们在背景场技术中评估了非极化横向动量依赖（TMD）算符的光锥算符乘积展开，直至 twist-3 inclusive。推导了 Sivers 函数的下一阶 leading 阶（NLO）匹配系数。给出了该方法以及计算的诸多细节。
引用
@article{arxiv.1901.04519,
title = {Collinear matching for Sivers function at next-to-leading order},
author = {Ignazio Scimemi and Andrey Tarasov and Alexey Vladimirov},
journal= {arXiv preprint arXiv:1901.04519},
year = {2019}
}
备注
46 page, 8 figured; ver2: Updated discussions on rapidity divergences and scheme-dependance, many minor changes