Quasi parton distribution functions at NNLO: flavor non-diagonal quark contributions
High Energy Physics - Phenomenology
2020-08-05 v2 High Energy Physics - Experiment
High Energy Physics - Lattice
Nuclear Experiment
Nuclear Theory
Abstract
We present a next-to-next-to-leading order (NNLO) calculation of the quasi parton distribution functions (Quasi-PDFs) in the large momentum effective theory (LaMET). We focus on the flavor non-diagonal quark-quark channel and demonstrate the LaMET factorization at the NNLO accuracy in the modified minimal subtraction scheme. The matching coefficient between the quasi-PDF and the light-cone PDF is derived. This provides a first step towards a complete NNLO analysis of quasi-PDFs and to better understand the nucleon structures from the first principle of QCD.
Keywords
Cite
@article{arxiv.2005.13757,
title = {Quasi parton distribution functions at NNLO: flavor non-diagonal quark contributions},
author = {Long-Bin Chen and Wei Wang and Ruilin Zhu},
journal= {arXiv preprint arXiv:2005.13757},
year = {2020}
}
Comments
10 pages, 3 figures; v2: accepted for publication in Physical Review D as a rapid communication