B mesons and form factors
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
In order to extract some information on the CKM matrix element |Vcb|, we have to determine form factors in B decays. For this, we show that it is relevant to consider the non-forward amplitude between the heavy-light B and D mesons within the Heavy Quark Effective Theory. This method provides us bounds on the shape of the elastic Isgur-Wise function. These bounds should be taken into account in the parametrizations of the Isgur-Wise function used to extract |Vcb|. Besides, we have also obtain new information on subleading functions at the order O(1/mQ) where mQ is the heavy quark mass.
Cite
@article{arxiv.hep-ph/0505119,
title = {B mesons and form factors},
author = {F. Jugeau},
journal= {arXiv preprint arXiv:hep-ph/0505119},
year = {2007}
}