A one parameter representation for the Isgur-Wise function
arXiv:hep-ph/9502249 · doi:10.1016/0370-2693(95)00529-T
Abstract
We use a $1S$ lattice QCD heavy-light wavefunction to generate a single parameter, model independent description of the Isgur-Wise function. Using recent data we find the zero-recoil slope to be $ξ'(1)= -1.16\pm 0.17$, while the second derivative turns out to be $ξ''(1)= 2.64\pm 0.74$.
Latex (uses epsf macro), 7 pages of text, 2 postscript figures included.