The radiative decay phi - gamma pi pi in a coupled channel model and the structure of f0(980)
Abstract
Description
A coupled channel model is used to study the nature of the scalar mesons produced in the decay phi - gamma pi pi. The KKbar molecular picture of f0(980) is found to be in a good agreement with the recent experimental data from SND and CMD-2. The structure of the light scalar mesons is elucidated by investigating the S-matrix poles and the qqbar spectral density.
20 pages, 18 PostScript figures
20 pages, 18 PostScript figures