Leptonic B- and D-Meson Decay Constants with 2+1 Flavors of Asqtad Fermions
Conference
·
OSTI ID:1223205
We present the status of our updated D- and B-meson decay-constant analysis, based on the MILC Nf =2+1 asqtad gauge ensembles. Heavy quarks are incorporated using the Wilson clover action with the Fermilab interpretation. This analysis includes ensembles at five lattice spacings from α ≈ 0.045 to 0.15 fm, and light sea-quark masses down to 1/20th of the strange-quark mass. Projected error budgets for ratios of decay constants, in particular between bottom- and charm-meson decay constants, are presented.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1223205
- Report Number(s):
- FERMILAB-CONF-14-521-T; arXiv eprint number arXiv:1501.01991; TRN: US1601470
- Resource Relation:
- Conference: 32. International Symposium on Lattice Field Theory, Brookhaven, NY (United States), 23-28 Jun 2014
- Country of Publication:
- United States
- Language:
- English
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