O(aαs) matching coefficients for the ΔB=2 operators in the lattice static theory
Physical Review D Volume 60 Issue 3
Page 034501-1-034501-8
published_at 1999-06-25
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| File | |
| Title ( eng ) |
O(aαs) matching coefficients for the ΔB=2 operators in the lattice static theory
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| Creator |
Ishikawa Ken-Ichi
Onogi Tetsuya
Yamada Norikazu
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| Source Title |
Physical Review D
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| Volume | 60 |
| Issue | 3 |
| Start Page | 034501-1 |
| End Page | 034501-8 |
| Abstract |
We present the perturbative matching coefficient to O(aαs) which relates the ΔB=2 operator in the continuum to that of the lattice static theory, which is important in accurate extraction of the continuum value of BB from lattice simulations. The coefficients are obtained by one-loop calculations in both the continuum and lattice theory. We find that two new dimension-7 operators appear at O(aαs) with O(1) coefficients. We also discuss possible cancellation of the O(aαs) correction in the ratio BB=〈B̅ |OL|B〉/[(8/3)(fBMB)2] qualitatively.
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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 | 1999-06-25 |
| Rights |
Copyright (c) 1999 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.60.034501
[NCID] AA00773624
[DOI] http://dx.doi.org/10.1103/PhysRevD.60.034501
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