Heavy-to-light form factors for non-relativistic bound states
High Energy Physics - Phenomenology
2016-09-06 v1
Abstract
We investigate transition form factors between non-relativistic QCD bound states at large recoil energy. Assuming the decaying quark to be much heavier than its decay product, the relativistic dynamics can be treated according to the factorization formula for heavy-to-light form factors obtained from the heavy-quark expansion in QCD. The non-relativistic expansion determines the bound-state wave functions to be Coulomb-like. As a consequence, one can explicitly calculate the so-called ``soft-overlap'' contribution to the transition form factor.
Cite
@article{arxiv.hep-ph/0509347,
title = {Heavy-to-light form factors for non-relativistic bound states},
author = {G. Bell and Th. Feldmann},
journal= {arXiv preprint arXiv:hep-ph/0509347},
year = {2016}
}
Comments
Talk presented at QCD '05, Montpellier, July 2005, 4 pages, 4 figures