论文标题
关于Parton分布的晶格可观察的注释:Nongauge理论
Notes on lattice observables for parton distributions: nongauge theories
论文作者
论文摘要
我们回顾了可以通过分解公式在晶格上计算的相等时代相关因素的定义和重新规则化的最新理论发展。我们展示了如何在非项理论的框架内研究和分析这些对象,从而通过一环计算获得了见解。我们使用标量场理论作为操场来修改,分析和介绍这些思想的主要特征,探索它们的潜力,并了解其提取PDF的局限性。然后,我们提出了一个框架,该框架将允许在全局分析中包含可用的晶格QCD数据以提取PDF。
We review recent theoretical developments concerning the definition and the renormalization of equal-time correlators that can be computed on the lattice and related to Parton Distribution Functions (PDFs) through a factorization formula. We show how these objects can be studied and analyzed within the framework of a nongauge theory, gaining insight through a one-loop computation. We use scalar field theory as a playground to revise, analyze and present the main features of these ideas, to explore their potential, and to understand their limitations for extracting PDFs. We then propose a framework that would allow to include the available lattice QCD data in a global analysis to extract PDFs.