Confinement and parity doubling in heavy-light mesons
High Energy Physics - Phenomenology
2009-11-11 v1
Abstract
In this paper, we study the chiral symmetry restoration in the hadronic spectrum in the framework of generalised Nambu-Jona-Lasinio quark models with instantaneous confining quark kernels. We investigate a heavy-light quarkonium and derive its bound-state equation in the form of a Schroedingerlike equation and, after the exact inverse Foldy-Wouthuysen transformation, in the form of a Diraclike quation. We discuss the Lorentz nature of confinement for such a system and demonstrate explicitly the effective chiral symmetry restoration for highly excited states in the mesonic spectrum. We give an estimate for the scale of this restoration.
Cite
@article{arxiv.hep-ph/0507330,
title = {Confinement and parity doubling in heavy-light mesons},
author = {Yu. S. Kalashnikova and A. V. Nefediev and J. E. F. T. Ribeiro},
journal= {arXiv preprint arXiv:hep-ph/0507330},
year = {2009}
}
Comments
RevTeX4, 21 pages, 6 Postscript figures, uses epsfig.sty, to appear in Phys.Rev.D