arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1709.07513hep-lathep-ph
收藏

准PDF方法计算部分子分布函数的进展

Progress in computing parton distribution functions from the quasi-PDF approach

Constantia Alexandrou, Krzysztof Cichy, Martha Constantinou, Kyriakos Hadjiyiannakou, Karl Jansen, Haralambos Panagopoulos, Aurora Scapellato, Fernanda Steffens

摘要:

我们讨论了目前的发展由欧洲扭曲质量协作提取部分子分布函数的准PDF方法。我们专注于我们最近开发的非微扰重整化处方,使用RI $'$计划。我们展示了计算准PDF所需的矩阵元素的重正化函数的结果,包括转换到$\overline{\rm MS}$方案,以及重正化矩阵元素。我们讨论了系统的影响,目前在$Z$ -因素和可能的方式来解决他们在未来。

英文摘要:

We discuss the current developments by the European Twisted Mass Collaboration in extracting parton distribution functions from the quasi-PDF approach. We concentrate on the non-perturbative renormalization prescription recently developed by us, using the RI$'$ scheme. We show results for the renormalization functions of matrix elements needed for the computation of quasi-PDFs, including the conversion to the $\overline{\rm MS}$ scheme, and for renormalized matrix elements. We discuss the systematic effects present in the $Z$-factors and the possible ways of addressing them in the future.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑