Journal article 991 views
A high statistics lattice calculation of heavy-light meson decay constants
Physics Letters B, Volume: 405, Issue: 1-2, Pages: 133 - 141
Swansea University Author:
Chris Allton
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DOI (Published version): 10.1016/S0370-2693(97)00580-7
Abstract
We present a high statistics study of the D- and B-meson decay constants. The results were obtained by using the Clover and Wilson lattice actions at two different values of the lattice spacing $a$, corresponding to $\beta=6.0$ and 6.2. After a careful analysis of the systematic errors present in th...
| Published in: | Physics Letters B |
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| ISSN: | 03702693 |
| Published: |
1997
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa28494 |
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| Abstract: |
We present a high statistics study of the D- and B-meson decay constants. The results were obtained by using the Clover and Wilson lattice actions at two different values of the lattice spacing $a$, corresponding to $\beta=6.0$ and 6.2. After a careful analysis of the systematic errors present in the extraction of the physical results, by assuming quite conservative discretization errors, we find $f_{D_s}=237 \pm 16$ MeV, $f_{D} = 221 \pm 17$ MeV ($f_{D_s}/f_D=1.07(4)$), $f_{B_s} = 205 \pm 35$ MeV, $f_{B} = 180 \pm 32$ MeV ($f_{B_s}/f_B=1.14(8)$), in good agreement with previous estimates. |
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| College: |
Faculty of Science and Engineering |
| Issue: |
1-2 |
| Start Page: |
133 |
| End Page: |
141 |