Application of heavy-quark effective theory to lattice QCD. II. Radiative corrections to heavy-light currents
Physical Review D Volume 65 Issue 9
Page 094513-1-094513-19
published_at 2002-05-16
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| File | |
| Title ( eng ) |
Application of heavy-quark effective theory to lattice QCD. II. Radiative corrections to heavy-light currents
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| Creator |
Harada Junpei
Hashimoto Shoji
Ishikawa Ken-Ichi
Kronfeld Andreas S.
Onogi Tetsuya
Yamada Norikazu
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| Source Title |
Physical Review D
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| Volume | 65 |
| Issue | 9 |
| Start Page | 094513-1 |
| End Page | 094513-19 |
| Abstract |
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.
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 2002-05-16 |
| Rights |
Copyright (c) 2002 The American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 1550-7998
[DOI] 10.1103/PhysRevD.65.094513
[NCID] AA00773624
[DOI] http://dx.doi.org/10.1103/PhysRevD.65.094513
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