Renormalization of bilinears in nonrelativistic QCD

C. T.H. Davies, B. A. Thacker

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

We calculate the O(αs) corrections to bilinear lattice vertex operators in nonrelativistic QCD (NRQCD) on the lattice. We use the lowest-order (in 1M) 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.

Original languageEnglish
Pages (from-to)1329-1336
Number of pages8
JournalPhysical Review D
Volume48
Issue number3
DOIs
StatePublished - 1993

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