The Isgur-Wise Function within a Modified Heavy-Light Chiral Quark Model
High Energy Physics - Phenomenology
2010-05-12 v1
Abstract
We consider the Isgur-Wise function xi(omega) within a new modified version of a heavy-light chiral quark model. While early versions of such models gave too small absolute value of the slope, namely xi'(1) of about -0.4 to -0.3, we show how extended version(s) may lead to values around -1, in better agreement with recent measurements. This is obtained by introducing a new mass parameter in the heavy quark propagator. We also shortly comment on the consequences for the decay modes B --> D D-bar.
Cite
@article{arxiv.0910.5428,
title = {The Isgur-Wise Function within a Modified Heavy-Light Chiral Quark Model},
author = {Jan O. Eeg and Kresimir Kumericki},
journal= {arXiv preprint arXiv:0910.5428},
year = {2010}
}
Comments
20 pages, 7 PS figure, LaTeX