Within the framework of large momentum effective theory (LaMET), the light-cone distribution amplitude of B-meson in heavy-quark effective theory (HQET) can be extracted from lattice calculations of quasidistribution amplitude through hard-collinear factorization formula. This quasiquantity can be renormalized in a regularization-independent momentum subtraction scheme (RI/MOM). In this work, we derive the matching coefficient which connects the renormalized quasiditribution amplitude in the RI/MOM scheme and standard LCDA in the MS scheme at one-loop accuracy. Our numerical analysis approves of the feasibility of RI/MOM scheme for renormalizing B-meson quasidistribution amplitude. These results will be crucial for exploring the partonic structure of heavy-quark hadrons.
@article{arxiv.2209.10719,
title = {Matching the B-meson quasidistribution amplitude in the RI/MOM scheme},
author = {Ji Xu and Xi-Ruo Zhang},
journal= {arXiv preprint arXiv:2209.10719},
year = {2023}
}