A high statistics lattice calculation of heavy-light meson decay constants
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 β = 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 fDs = 237 +/- 16 MeV, fD = 221 +/- 17 MeV (fDs/fD = 1.07(4)), fBs = 205 +/- 35 MeV, fB = 180 +/- 32 MeV (fBs/fB = 1.14(8)), in good agreement with previous estimates.
- Publication:
-
Physics Letters B
- Pub Date:
- February 1997
- DOI:
- 10.1016/S0370-2693(97)00580-7
- arXiv:
- arXiv:hep-lat/9703002
- Bibcode:
- 1997PhLB..405..133A
- Keywords:
-
- High Energy Physics - Lattice;
- High Energy Physics - Phenomenology
- E-Print:
- 15 pages, Latex with one postscript figure