Light Scalar Mesons
High Energy Physics - Phenomenology
2010-12-13 v1
Abstract
We review how a certain effective chiral Lagrangian approach to pi pi scattering, pi K scattering and eta-prime decay to eta pi pi provides evidence for the existence of light scalars sigma(550) and kappa(900) as well as describing the f0(980) and the a0(980). An attempt to fit these into a nonet suggests that their structure is closer to a dual quark-dual antiquark than to a quark-antiquark. A possible mechanism to explain the next higher mass scalar nonet is also proposed.
Keywords
Cite
@article{arxiv.hep-ph/9911387,
title = {Light Scalar Mesons},
author = {Deirdre Black and Amir H. Fariborz and Joseph Schechter},
journal= {arXiv preprint arXiv:hep-ph/9911387},
year = {2010}
}
Comments
10 pages, 4 figures, talk given at Hadron Physics: Effective Theories of Low Energy QCD, Coimbra, Portugal, Sept. 1999