Form Factor Relations for Heavy-to-Light Transitions
High Energy Physics - Phenomenology
2010-11-01 v2
Abstract
Assuming simple properties of the spectator particle in weak decays the form factors of hadronic current matrix elements are shown to be related to a single universal function. The Isgur-Wise result for heavy-to-heavy transitions follows as well as similar relations for heavy-to-light decay processes. The approximation should hold for total energies of the final particle large compared to the confinement scale. A comparison with experimentally determined D-decay form factors and QCD sum rule results for B-decays is very encouraging.
Cite
@article{arxiv.hep-ph/9502378,
title = {Form Factor Relations for Heavy-to-Light Transitions},
author = {Berthold Stech},
journal= {arXiv preprint arXiv:hep-ph/9502378},
year = {2010}
}
Comments
12 pages, Latex; Relativistic covariant form, results unchanged, references added, to be published in Physics Lett. B