Decay Constants of B and D Mesons from Non-pertubatively Improved Lattice QCD

Journal Article · Sat Jul 01 00:00:00 EDT 2000 · Elsevier Preprint

OSTI ID:760436

Bowler, K C; Debbio, L Del; Flynn, J M; G N, Lacagnina; Lesk, V I; Maynard, C M; Richards, D G

The decay constants of B and D mesons are computed in quenched lattice QCD at two different values of the coupling. The action and operators are ? (a) improved with non-perturbative coefficients where available. The results and systematic errors are discussed in detail. Results for vector decay constants, flavour symmetry breaking ratios of decay constants, the pseudoscalar-vector mass splitting and D meson masses are also presented.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); University of Edinburgh; University of Southampton; Old Dominion University (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 760436
• Report Number(s): JLAB-THY-00-25; DOE/ER/40150-1739; hep-lat/0007020; Edinburgh-2000/14; IFUP-TH/2000-17; SHEP-00-08; EPSRC-Grant-GR/K41663; PPARC-Grant-GR/L29927; PPARC-Grant-GR/L56336; PPARC-Grant-PPA/G/S/1999/00022; PPA/G/S/1998/00255; EPSRC Grant GR/K41663; PPARC Grant GR/L29927; PPARC Grant GR/L56336; PPARC Grant PPA/G/S/1999/00022; TRN: US0004367
• Journal Information: Elsevier Preprint, Other Information: Submitted to Elsevier; PBD: 1 Jul 2000
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
D MESONS
DECAY
COUPLING CONSTANTS
DATA COVARIANCES
QUANTUM CHROMODYNAMICS
SYMMETRY BREAKING
QUANTUM FLAVORDYNAMICS