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arXiv 2109.09771hep-phhep-th
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次领先幂的横动量相关算符展开

Transverse momentum dependent operator expansion at next-to-leading power

Alexey Vladimirov, Valentin Moos, Ignazio Scimemi

摘要:

我们开发了一种方法的横向动量相关(TMD)的运营商展开,产生的TMD因子分解定理的运营商水平。TMD算子相对于TMD扭转系统地排序,这允许运动学校正和真实功率校正的一定分离。过程依赖性通过背景场的边界条件进入。作为一个原则的证明,我们推导出TMD分解的下一个领先的权力$(\sim q_T/Q)$在下一个领先的顺序与两个检测状态的任何过程。

英文摘要:

We develop a method of transverse momentum dependent (TMD) operator expansion that yields the TMD factorization theorem on the operator level. The TMD operators are systematically ordered with respect to TMD-twist, which allows a certain separation of kinematic and genuine power corrections. The process dependence enters via the boundary conditions for the background fields. As a proof of principle, we derive the TMD factorization up to the next-to-leading power $(\sim q_T/Q)$ at the next-to-leading order for any process with two detected states.

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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