• DOI:10.1103/PhysRevD.65.094513 10.1103/PhysRevD.71.019903
• Corpus ID: 2151380

Application of heavy-quark effective theory to lattice QCD. II. Radiative corrections to heavy-light currents

@article{Harada2001ApplicationOH,
  title={Application of heavy-quark effective theory to lattice QCD. II. Radiative corrections to heavy-light currents},
  author={Junpei Harada and Shoji Hashimoto and Andreas S. Kronfeld and Tetsuya Onogi},
  journal={Physical Review D},
  year={2001},
  volume={65},
  pages={094513-1-094513-19}
}

• J. Harada, S. Hashimoto, +1 author T. Onogi
• Published 20 December 2001
• Physics
• Physical Review D

We apply heavy-quark effective theory to separate long- and short-distance effects of heavy quarks in lattice gauge theory. In this approach, the inverse heavy-quark mass and the lattice spacing are treated as short distances, and their effects are lumped into short-distance coefficients. We show how to use this formalism to match lattice gauge theory to continuum QCD, order by order in the heavy-quark expansion. In this paper, we focus on heavy-light currents. In particular, we obtain one-loop results for the matching factors of lattice currents, needed for heavy-quark phenomenology, such as the calculation of heavy-light decay constants, and heavy-to-light transition form factors. Results for the Brodsky-Lepage-Mackenzie scale q* are also given.