论文标题
非局部手性有效理论中的核子形式因子和parton分布
Nucleon form factors and parton distributions in nonlocal chiral effective theory
论文作者
论文摘要
我们对非局部手性有效理论在强子结构研究中的最新应用进行了回顾。从非局部介子 - 巴里族有效的手性拉格朗日开始，我们展示了相关函数的引入如何代表哈子的有限范围正规化介子环的积分，并以衡量方式引入了顶点形式的动量依赖性。我们将框架应用于核子电磁形式，非偏振和极化的Parton分布以及横向动量依赖性分布和广义Parton分布的计算。假设非局部行为是所有相互作用的一般特性，我们还讨论了在非局部QED中对Lepton异常磁矩的应用。
We present a review of recent applications of nonlocal chiral effective theory to hadron structure studies. Starting from a nonlocal meson--baryon effective chiral Lagrangian, we show how the introduction of a correlation function representing the finite extent of hadrons regularizes the meson loop integrals and introduces momentum dependence in vertex form factors in a gauge invariant manner. We apply the framework to the calculation of nucleon electromagnetic form factors, unpolarized and polarized parton distributions, as well as transverse momentum dependent distributions and generalized parton distributions. Assuming that the nonlocal behavior is a general property of all interactions, we also discuss the application to the lepton anomalous magnetic moment in nonlocal QED.
