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arXiv 1901.04519hep-ph
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次首阶Sivers函数的共线匹配

Collinear matching for Sivers function at next-to-leading order

Ignazio Scimemi, Andrey Tarasov, Alexey Vladimirov

摘要:

本文计算了扭转3以上背景场技术中非偏振横动量相关算符的光锥算子乘积展开。推导了Sivers函数的次前导阶匹配系数。该方法,以及许多细节的计算,提出。

英文摘要:

We evaluate the light-cone operator product expansion for the unpolarized transverse momentum dependent (TMD) operator in the background-field technique up twist-3 inclusively. The next-to-leading order (NLO) matching coefficient for the Sivers function is derived. The method, as well as many details of the calculation, are presented.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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