QCD radiative corrections to the leptonic decay rate of the Bc meson

Eric Braaten, Sean Fleming

Research output: Contribution to journalArticlepeer-review

72 Scopus citations

Abstract

The QCD radiative corrections to the leptonic decay rate of the Bc meson are calculated using the formalism of nonrelativistic QCD (NRQCD) to separate short-distance and long-distance effects. The Bc decay constant is factored into a sum of NRQCD matrix elements each multiplied by a short-distance coefficient. The short-distance coefficient for the leading matrix element is calculated to order αs by matching a perturbative calculation in full QCD with the corresponding perturbative calculation in NRQCD. This short-distance correction decreases the leptonic decay rate by approximately 15%.

Original languageEnglish (US)
Pages (from-to)181-185
Number of pages5
JournalPhysical Review D
Volume52
Issue number1
DOIs
StatePublished - 1995
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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