论文标题
Collins-Soper内核的独立定义
Self-contained definition of the Collins-Soper kernel
论文作者
论文摘要
速度异常维度（RAD）或Collins-Soper内核定义了横向动量依赖分布的缩放特性，可以从实验数据中提取。我得出了一个独立的非扰动定义，该定义代表RAD而无需参考特定过程。该定义可以通过一侧的理论方法对RAD的性质进行探索，以及QCD真空的特性以及另一侧的对撞机测量值。为了证明这些可能性，我计算了对RAD的功率校正，该功率渐近渐近，并将这些估计与最近的现象学提取进行了比较。
The rapidity anomalous dimension (RAD), or Collins-Soper kernel, defines the scaling properties of transverse momentum dependent distributions and can be extracted from the experimental data. I derive a self-contained nonperturbative definition that represents RAD without reference to a particular process. This definition makes possible exploration of the properties of RAD by theoretical methods on one side, and the properties of QCD vacuum with collider measurements on another side. To demonstrate these possibilities, I compute the power correction to RAD, its large-b asymptotic, and compare these estimations with recent phenomenological extractions.
