Analyticity and the Isgur-Wise Function
High Energy Physics - Phenomenology
2010-11-01 v1
Abstract
We reconsider the recent derivation by de Rafael and Taron of bounds on the slope of the Isgur-Wise function. We argue that one must be careful to include cuts starting below the heavy meson pair production threshold, arising from heavy quark-antiquark bound states, and that if such cuts are properly accounted for then no constraints may be derived.
Cite
@article{arxiv.hep-ph/9211222,
title = {Analyticity and the Isgur-Wise Function},
author = {Adam F. Falk and Michael Luke and Mark B. Wise},
journal= {arXiv preprint arXiv:hep-ph/9211222},
year = {2010}
}
Comments
8 pages, uses harvmac, SLAC-PUB-5956, UCSD/PTH 92-35, CALT-68-1830