The x-dependence of light-cone distribution amplitude (LCDA) can be directly calculated from a quasi distribution amplitude (DA) in lattice QCD within the framework of large-momentum effective theory (LaMET). In this paper, we study the one-loop renormalization of the quasi-DA in the regularization-independent momentum subtraction (RI/MOM) scheme. The renormalization factor for the quasi parton distribution function can be used to renormalize the quasi-DA provided that they are implemented on lattice and in perturbation theory in the same manner. We derive the one-loop matching coefficient that matches quasi-DA in the RI/MOM scheme onto LCDA in the MS scheme. Our result provides the crucial step to extract the LCDAs from lattice matrix elements of quasi-DAs.
@article{arxiv.1810.10879,
title = {Matching the Quasi Meson Distribution Amplitude in RI/MOM scheme},
author = {Yu-Sheng Liu and Wei Wang and Ji Xu and Qi-An Zhang and Shuai Zhao and Yong Zhao},
journal= {arXiv preprint arXiv:1810.10879},
year = {2019}
}