H. Hogaasen et M. Sadzikowski, ISGUR-WISE FUNCTIONS FOR CONFINED LIGHT QUARKS IN A COLOR ELECTRIC-POTENTIAL, Zeitschrift fur Physik. C, Particles and fields, 64(3), 1994, pp. 427-430
We explore the influence on the Isgur-Wise function of the colour elec
tric potential between heavy and light quarks in mesons. It is shown t
hat in bag models, its inclusion tends to restore light quark flavour
symmetry relative to the MIT bag predictions, and that relative to thi
s model it flattens the Isgur-Wise function. Results compare very well
with observations.