The decay constants f(B) and f(D+) from three-flavor lattice QCD
Conference
·
· PoS LAT2007:370,2007
OSTI ID:932869
We present new preliminary results for the leptonic decay constants f{sub B} and f{sub D+} determined in 2+1 flavor lattice QCD at lattice spacings a = 0.09, 0.12 and 0.15 fm. Results are obtained using the MILC Collaboration gauge configuration ensembles, clover heavy quarks in the Fermilab interpretation and improved staggered light quarks. Decay constants, computed at partially quenched combinations of the valence and sea light quark masses, are used to determine the low-energy parameters of staggered chiral perturbation theory. The physical decay constants are found in an extrapolation using the parameterized chiral formula.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 932869
- Report Number(s):
- FERMILAB-CONF-07-742-T
- Conference Information:
- Journal Name: PoS LAT2007:370,2007
- Country of Publication:
- United States
- Language:
- English
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