Comparison of potential models through HQET
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
Cite
@article{arxiv.hep-ph/9504425,
title = {Comparison of potential models through HQET},
author = {James F. Amundson},
journal= {arXiv preprint arXiv:hep-ph/9504425},
year = {2011}
}
Comments
19 pages, LaTeX with epsf.sty. Figures included through uufiles. Compressed Postscript available at ftp://phenom.physics.wisc.edu/pub/preprints/1995/madph-95-859.ps.Z or http://phenom.physics.wisc.edu/pub/preprints/1995/madph-95-859.ps.Z