论文标题
横向动量依赖分布的定义和演变三个
Definition and evolution of transverse momentum dependent distribution of twist-three
论文作者
论文摘要
我们提出了对扭曲三的横向动量依赖性（TMD）分布的深入分析。特别是，我们专注于进化方程，对称关系，参数化，解释，小-B渐近行为和奇异性结构。讨论的起点是与确定的TMD TWIST的相关器。通过考虑这些相关器的合适组合，我们引入了扭曲的物理TMD分布，可用于实际应用。我们还与Twist-Three的通用TMD分布建立了关系，并证明它们的演化方程在很大的$ N_C $限制中是自主的。
We present an in-depth analysis of transverse momentum dependent (TMD) distributions of twist-three. In particular, we focus on evolution equations, symmetry relations, parameterization, interpretation, small-b asymptotic behaviour and the structure of singularities. The starting point of discussion are the correlators with the definite TMD-twist. By considering suitable combinations of these correlators, we introduce physical TMD distribution of twist-three that can be used for practical applications. We also establish relations with generic TMD distribution of twist-three, and demonstrate that their evolution equations are autonomous in the large-$N_c$ limit.
