Renormalization of bilinears in nonrelativistic QCD

Journal Article · Sun Aug 01 04:00:00 EDT 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.1329· OSTI ID:6330753

Davies, C T.H. ^[1]; Thacker, B A ^[2]

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1. Department of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ (United Kingdom)
2. Physics Department, The Ohio State University, 174 West 18th Avenue, Columbus, Ohio 43210 (United States)

We calculate the [ital O]([alpha][sub [ital s]]) corrections to bilinear lattice vertex operators in nonrelativistic QCD (NRQCD) on the lattice. We use the lowest-order (in 1/[ital M]) NRQCD action which includes the time derivative and kinetic energy terms, but we ignore spin effects. We give the correction required to convert a lattice calculation of the pseudoscalar heavy-light meson decay constant into a value appropriate for the continuum. For the light fermion we have used ordinary Wilson fermions, improved Wilson fermions, and naive fermions. We also give the correction required for a calculation of the vector heavy-heavy meson leptonic width. This is unfortunately large.

• OSTI ID: 6330753
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 48:3; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662230* -- Quantum Chromodynamics-- (1992-)
662350 -- Decays of Mesons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
CORRECTIONS
ENERGY
FIELD THEORIES
FUNCTIONS
KINETIC ENERGY
LATTICE FIELD THEORY
MATRIX ELEMENTS
PARTICLE PROPERTIES
PARTICLE WIDTHS
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
RENORMALIZATION
SPIN
VERTEX FUNCTIONS