The scalar meson sector and the sigma, kappa problem
High Energy Physics - Phenomenology
2009-11-10 v1
Abstract
In the light scalar meson sector (M < 1.8 GeV) one expects at least one q qbar nonet and a glueball, possibly also multi-quark states. We discuss the present phenomenological evidence for sigma and kappa particles; if real, they could be members of the lightest (quark or multi-quark) nonet together possibly with a_0(980) and f_0(980). Alternatively, the lightest nonet could include f_0(980) but not sigma and kappa. Future decisive experimental studies, concerning tests of symmetry relations, especially in B-decays, are outlined.
Keywords
Cite
@article{arxiv.hep-ph/0311144,
title = {The scalar meson sector and the sigma, kappa problem},
author = {Wolfgang Ochs},
journal= {arXiv preprint arXiv:hep-ph/0311144},
year = {2009}
}
Comments
12 pages, 1 figure, Invited plenary talk at HADRON'03 (Aschaffenburg, Germany 31 Aug - 6 Sept 2003), to appear in AIP Conf. Proc