B and D meson decay constants in lattice QCD
Citation:
El-Khadra, A. X., Kronfeld, A. S., Mackenzie, P. B., Ryan, S. M., Simone, J. N. ` B and D meson decay constants in lattice QCD? in Physical Review D, 58, 1998, pp 014506-1 ? 014506-10Download Item:
Abstract:
We have calculated the decay constants of B and D mesons with lattice QCD. We use an O(a)-improved
action that takes light quark actions as a starting point, tuned so that it can be directly applied at the physical
masses of the b and c quarks. Our results are f B5164211
11468 MeV, f Bs
518528
11369 MeV, f D5194210
114
610 MeV, and f Ds
5213211
114611 MeV in the quenched approximation. The first error in each case is statistical,
and the second is from perturbation theory. We show that discretization errors are under control in our
approach and smaller than our statistical errors. The effects of the quenched approximation may raise our
quenched result by up to 10%.
Author's Homepage:
http://people.tcd.ie/ryansinDescription:
PUBLISHED
Author: RYAN, SINEAD MARIE
Publisher:
American Physical SocietyType of material:
Journal ArticleSeries/Report no:
Physical Review D58
1
Availability:
Full text availableKeywords:
Pure & Applied MathematicsISSN:
0556-2821Metadata
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