Within the framework of large momentum effective theory (LaMET), we propose a hard-collinear factorization formula to extract the subleading-twist B-meson light-cone distribution amplitude (LCDA) from the quasidistribution amplitude calculated on the lattice. The one-loop matching coefficient and an integro-differential equation governing the evolution of the quasidistribution amplitude are derived. Our results could be useful either in evaluating the subleading-twist B-meson LCDA on the lattice or in the understanding the feasibility of LaMET on higher-twist distributions.
@article{arxiv.2308.13977,
title = {Accessing the subleading-twist $B$-meson light-cone distribution amplitude with Large-Momentum Effective Theory},
author = {Shu-Man Hu and Wei Wang and Ji Xu and Shuai Zhao},
journal= {arXiv preprint arXiv:2308.13977},
year = {2023}
}