Excited scalar mesons in a chiral quark model
High Energy Physics - Phenomenology
2009-10-31 v2
Abstract
First radial excitations of the isoscalar and isovector scalar mesons f_0(400-1200), f_0(980) and a_0(980) are investigated in the framework of a nonlocal version of a chiral quark model of the Nambu--Jona-Lasinio type. It is shown that f_0(1370), f_J(1710) and a_0(1450) are the first radially excited states of f_0(400-1200), f_0(980) and a_0(980) which are ground states of the scalar meson nonet. The mesons' masses and strong decay widths are calculated. The scalar resonance f_0(1500) is supposed to be a glueball. The status of K_0^*(1430) is discussed.
Keywords
Cite
@article{arxiv.hep-ph/9904226,
title = {Excited scalar mesons in a chiral quark model},
author = {M. K. Volkov and V. L. Yudichev},
journal= {arXiv preprint arXiv:hep-ph/9904226},
year = {2009}
}
Comments
LaTeX, 1 figure, minor misprints eradicated