## Physics

Article

5-6-2007

English

Physics

#### Description/Abstract

In this write-up, we summarize our recent analysis of radiative decays involving light scalar mesons. Our analysis using the vector meson dominance model at tree level indicates that it may be difficult to distinguish qq\bar{q}\bar{q} picture and q\bar{q} picture for the light scalar nonet. Our result on the process of \phi \to \pi^0 \eta \gamma shows that the derivative-type f_0 K\bar{K} interaction reproduces experimental data below 950 GeV well, but gives a poor fit above 950 GeV, i.e., in the energy region around the mass of a_0(980), but that the discrepancy can be compensated by the effect of the K loop.

Talk given by M. Harada at Yukawa International Seminar (YKIS) 2006 New Frontiers in QCD -Exotic Hadrons and Hadronic Matter-'' More information available at http://arxiv.org/abs/0705.0802

#### Source

Harvested from Arxiv.org