Parton distribution function with nonperturbative renormalization from lattice QCD
Parton distribution function with nonperturbative renormalization from lattice QCD
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DOI：
10.1103/physrevd.97.014505
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发表时间：
2017-06
影响因子：
5
通讯作者：
Jiunn-Wei Chen;T. Ishikawa;Luchang Jin;Huey-Wen Lin;Yi-Bo Yang;Jian-Hui Zhang;Yong Zhao
中科院分区：
文献类型：
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作者：
Jiunn-Wei Chen;T. Ishikawa;Luchang Jin;Huey-Wen Lin;Yi-Bo Yang;Jian-Hui Zhang;Yong Zhao
我们提出了晶格结果的等矢量非极化部分子分布与非微扰正则化不变的动量减法计划（RI/ESTA）重整化的晶格上。在大动量有效场理论（LaMET）的框架下，计算了一个动量相关的准分布在晶格上的完整的Bjorken-x依赖关系，并将其与普通光锥部分子分布在一圈级匹配，其中包括功率修正.本文详细介绍了RI/R重整化中连接格点矩阵元和连续矩阵元的重要步骤。一些结果的后果也在这里解决。
We present lattice results for the isovector unpolarized parton distribution with nonperturbative regularization-invariant momentum-subtraction scheme (RI/MOM) renormalization on the lattice. In the framework of large-momentum effective field theory (LaMET), the full Bjorken-x dependence of a momentum-dependent quasidistribution is calculated on the lattice and matched to the ordinary light cone parton distribution at one-loop order, with power corrections included. The important step of RI/MOM renormalization that connects the lattice and continuum matrix elements is detailed in this paper. A few consequences of the results are also addressed here.