fB with lattice NRQCD including O(1/mQ2) corrections
Physical Review D Volume 56 Issue 11
Page 7028-7038
published_at 1997-12-01
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| File | |
| Title ( eng ) |
fB with lattice NRQCD including O(1/mQ2) corrections
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| Creator |
Ishikawa Ken-Ichi
Matsufuru Hideo
Onogi Tetsuya
Yamada Norikazu
Hashimoto Shoji
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| Source Title |
Physical Review D
|
| Volume | 56 |
| Issue | 11 |
| Start Page | 7028 |
| End Page | 7038 |
| Abstract |
We investigate higher order effects in the nonrelativistic expansion of lattice QCD (NRQCD) on the heavy-light meson decay constants and some other quantities in order to understand the truncation error of NRQCD. While our numerical results have large O(a) and O(α) errors due to the use of the Wilson light quark action and tree-level matching, we find that the truncation error of higher order relativistic corrections are adequately small around the mass of the b quark. Simulations are carried out on a 163×32 lattice with 120 quenched gauge configurations generated with the plaquette action at β=5.8. Systematic errors and the limitation of NRQCD theory are discussed.
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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 | 1997-12-01 |
| Rights |
Copyright (c) 1997 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.56.7028
[NCID] AA00773624
[DOI] http://dx.doi.org/10.1103/PhysRevD.56.7028
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