Comparison of potential models through heavy quark effective theory

1 September 1995

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 52 (5) , 2926-2934
https://doi.org/10.1103/physrevd.52.2926

Abstract

I calculate heavy-light decay constants in a nonrelativistic potential model. The resulting estimate of heavy quark symmetry breaking conflicts with similar estimates from lattice QCD. I show that a semirelativistic potential model eliminates the conflict. Using the results of heavy quark effective theory allows me to identify and compensate for shortcomings in the model calculations in addition to isolating the source of the differences in the two models. The results lead to a rule as to where the nonrelativistic quark model gives misleading predictions.

Keywords

LATTICE QCD

All Related Versions

Version 1, 1995-04-28, ArXiv

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