TY - JOUR
T1 - Heavy-light decay constants - MILC results with the Wilson action
AU - Bernard, Claude
AU - Blum, Tom
AU - DeGrand, Thomas A.
AU - DeTar, Carleton
AU - Gottlieb, Steven
AU - Heller, Urs M.
AU - Hetrick, Jim
AU - McNeile, Craig
AU - Rummukainen, Kari
AU - Soni, A.
AU - Sugar, Bob
AU - Toussaint, Doug
AU - Wingate, Matthew
N1 - Funding Information:
This work was supported by the U.S. Department of Energy u\[lder contracts DE-AC02-76CH-0016, DE-AC02-86ER-40253, DE-FG03-95ER-40906, DE-FG05-85ER250000, DE-FG05-96ER40979, DE-2FG02-91ER-40628, DE-FG02-91ER-40661, and National Science Foundation grants NSF-PHY93-09458, NSF-PHY96-01227, NSF-PHY91-16964. Computations were performed at the Oak Ridge National Laboratory Center for Computational Sciences, the Pittsburgh Supercomputing Center, the National Center for Supercomputing Applications, the Cornell Theory Center, the San Diego Supercomputer Center, and Indiana University. Two of us, (S.G. and D.T.), are very grateful to the Center for Computational Physics at the University of Tsukuba for its generous support and warm hospitality. In addition, we thank Profs. Y. Iwasaki and A. Ukawa for all their efforts in organizing a very stimulating workshop.
PY - 1998/1
Y1 - 1998/1
N2 - We present the current status of our ongoing calculations of pseudoscalar meson decay constants for mesons that contain one light and one heavy quark (fB, fBs, fD, fDs). We are currently generating new gauge configurations that include dynamical quarks and calculating the decay constants. In addition, we have several new results for the static approximation. Those results, as well as several refinements to the analysis, are new since Lattice '96. Our current (still preliminary) value for fB is 156 ± 11 ± 30 ± 14 MeV, where the first error is from statistical and fitting errors, the second error is an estimate of other systematic errors within the quenched approximation and the third error is an estimate of the quenching error. For the ratio fBs/fB, we get 1.11 ± 0.02 ± 0.03 ± 0.07.
AB - We present the current status of our ongoing calculations of pseudoscalar meson decay constants for mesons that contain one light and one heavy quark (fB, fBs, fD, fDs). We are currently generating new gauge configurations that include dynamical quarks and calculating the decay constants. In addition, we have several new results for the static approximation. Those results, as well as several refinements to the analysis, are new since Lattice '96. Our current (still preliminary) value for fB is 156 ± 11 ± 30 ± 14 MeV, where the first error is from statistical and fitting errors, the second error is an estimate of other systematic errors within the quenched approximation and the third error is an estimate of the quenching error. For the ratio fBs/fB, we get 1.11 ± 0.02 ± 0.03 ± 0.07.
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U2 - 10.1016/S0920-5632(97)00472-6
DO - 10.1016/S0920-5632(97)00472-6
M3 - Article
AN - SCOPUS:0031602617
SN - 0920-5632
VL - 60
SP - 106
EP - 113
JO - Nuclear Physics B - Proceedings Supplements
JF - Nuclear Physics B - Proceedings Supplements
IS - 1-2
ER -