Heavy-quark spectroscopy for effective-action models

J. R. Hiller

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Results are reported for an application of the effective-action method to the computation of spectra for cc - , bb - , and tt - systems. The method determines static potentials from models for the vacuum dielectric permeability, of which two are considered: the leading-logarithm model and a hard-bag model. The spectra are then computed with standard nonrelativistic techniques. A new value of the leading-logarithm-model parameter κ is obtained from a fit to bb - data; it corresponds to a value of 161 MeV for ΛMS - , the scale mass of quantum chromodynamics (MS - denotes the modified minimal-subtraction scheme).

Original languageEnglish (US)
Pages (from-to)1520-1528
Number of pages9
JournalPhysical Review D
Volume30
Issue number7
DOIs
StatePublished - Jan 1 1984

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