Lattice heavy-meson decay constants and fermion universality

Journal Article · Wed Feb 01 04:00:00 EST 1989 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.39.978· OSTI ID:6455692

Woloshyn, R M; Draper, T; Liu, K F; Wilcox, W

The mass dependence of decay constants for vector and pseudoscalar mesons is calculated using both Wilson and staggered-fermion formulations in quenched lattice QCD. For low meson masses, the agreement of the two methods is good and the determination of the vector decay constant agrees with experiment. For pseudoscalar heavy-quark--light-quark systems, we find reasonable agreement between the two fermion formulations as long as Maapprox. <1, where M is the meson mass.

• Research Organization: TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3
• OSTI ID: 6455692
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 39:3; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645204 -- High Energy Physics-- Particle Interactions &amp; Properties-Theoretical-- Strong Interactions &amp; Properties
645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
DECAY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HADRONS
LATTICE FIELD THEORY
MASS SPECTRA
MATRIX ELEMENTS
MESONS
MONTE CARLO METHOD
PCAC THEORY
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
SPECTRA
VACUUM STATES
VECTOR MESONS