B and D Meson Decay Constants

Authors :: Bernard, C.
DeTar, C.
Di Pierro, M.
El-Khadra, A. X.
Evans, R. T.
Freeland, E. D.
Gamiz, E.
Gottlieb, Steven
Heller, U. M.
Hetrick, J. E.
Kronfeld, A. S.
Laiho, J.
Levkova, L.
Mackenzie, P. B.
Simone, J.
Sugar, R.
Toussaint, D.
Van de Water, R. S.
Publication Year :: 2009
Abstract: We present an update of our calculations of the decay constants of the D, D_s, B, and B_s mesons in unquenched 2+1 flavor QCD. We use the MILC library of improved staggered gauge ensembles at lattice spacings 0.09, 0.12, and 0.15 fm, clover heavy quarks with the Fermilab normalizations, and improved staggered light valence quarks.<br />7 pages; based on talked presented by P. Mackenzie at the XXVI International Symposium on Lattice Field Theory, July 14-19 2008, Williamsburg, Virginia, USA