The anomalous threshold, confinement, and an essential singularity in the heavy-light form factor
High Energy Physics - Phenomenology
2009-10-30 v1
Abstract
The analytic behavior of the heavy-light meson form factor is investigated using several relativistic examples including unconfined, weakly confined, and strongly confined mesons. It is observed that confinement erases the anomalous threshold singularity and also induces an essential singularity at the normal annihilation threshold. In the weak confinement limit, the "would be" anomalous threshold contribution is identical to that of the real singularity on its space-like side.
Cite
@article{arxiv.hep-ph/9702213,
title = {The anomalous threshold, confinement, and an essential singularity in the heavy-light form factor},
author = {M. G. Olsson},
journal= {arXiv preprint arXiv:hep-ph/9702213},
year = {2009}
}
Comments
Latex 2.09 with epsf.sty. 24 pages of text and 8 postscript figures. Postscript version of complete paper will also be available soon at http://phenom.physics.wisc.edu/pub/preprints/1997/madph-97-983 or at ftp://phenom.physics.wisc.edu/pub/preprints/1997/madph-97-983