@article{dfe89e22988e4e6984f101f469588142,
title = "B and D meson decay constants from 2+1 flavor improved staggered simulations",
abstract = "We give an update on simulation results for the decay constants fB, fBs, fD and fDs. These decay constants are important for precision tests of the standard model, in particular entering as inputs to the global CKM unitarity triangle fit. The results presented here make use of the MILC (2+1)-flavor asqtad ensembles, with heavy quarks incorporated using the clover action with the Fermilab method. Partially quenched, staggered chiral perturbation theory is used to extract the decay constants at the physical point. In addition, we give error projections for a new analysis in progress, based on an extended data set.",
author = "{Fermilab Lattice and MILC Collaborations} and Neil, {E. T.} and Bailey, {Jon A.} and A. Bazavov and C. Bernard and Bouchard, {C. M.} and C. DeTar and {Di Pierro}, M. and El-Khadra, {A. X.} and Evans, {R. T.} and E. Freeland and E. Gamiz and Steven Gottlieb and Heller, {U. M.} and Hetrick, {J. E.} and R. Jain and Kronfeld, {A. S.} and J. Laiho and L. Levkova and Mackenzie, {P. B.} and Oktay, {M. B.} and Simone, {J. N.} and R. Sugar and D. Toussaint and {Van de Water}, {R. S.}",
note = "Funding Information: puting Center, and the Los Alamos National Laboratory, which are funded by the Office of Science of the U.S. Department of Energy; and with resources provided by the National Institute for Computational Science, the Pittsburgh Supercomputer Center, the San Diego Supercomputer Center, and the Texas Advanced Computing Center, which are funded through the National Science Foundation{\textquoteright}s Teragrid/XSEDE Program. This work was supported in part by the U.S. Department of Energy under Grants No. DE-FC02-06ER41446 (C.D., L.L., M.B.O.), No. DE-FG02-91ER40661 (S.G.), No. DE-FG02-91ER40677 (C.M.B, R.T.E., E.D.F., E.G., R.J., A.X.K.), No. DE-FG02-91ER40628 (C.B), No. DE-FG02-04ER-41298 (D.T.); by the National Science Foundation under Grants No. PHY-0555243, No. PHY-0757333, No. PHY-0703296 (C.D., L.L., M.B.O.), No. PHY-0757035 (R.S.), and No. PHY-0704171 (J.E.H.); by the URA Visiting Scholars{\textquoteright} program (C.M.B., R.T.E., E.G., M.B.O.); and by the Fermilab Fellowship in Theoretical Physics (C.M.B.). This manuscript has been co-authored by employees of Brookhaven Science Associates, LLC, under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. Publisher Copyright: {\textcopyright} Copyright owned by the author(s).; 29th International Symposium on Lattice Field Theory, Lattice 2011 ; Conference date: 10-07-2011 Through 16-07-2011",
year = "2011",
language = "English (US)",
volume = "139",
journal = "Proceedings of Science",
issn = "1824-8039",
publisher = "Sissa Medialab Srl",
}