We present a calculation of the perturbative matching coefficients including mixing with higher dimensional operators for the temporal component of the heavy-light axial current, A4, and the ΔB=2 operator, OS. For A4static,NRQCD, calculations with various RG-improved gauge actions are peformed. Matching coefficients with NRQCD and heavy-clover actions are also compared.
@article{arxiv.hep-lat/9909159,
title = {$O(\alpha_{s}a)$ matching coefficients for axial vector current and $\Delta B$$=$2 operator},
author = {K-I. Ishikawa and T. Onogi and N. Yamada},
journal= {arXiv preprint arXiv:hep-lat/9909159},
year = {2015}
}