The radiative decay phi - gamma pi pi in a coupled channel model and the structure of f0(980)

Abstract

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

References in corpus (2)

• Study of the $\varphi$ decays into ${\pi }^0{\pi }^0\gamma$ and $\eta {\pi }^0\gamma$ final states
• First observation of the $\varphi \to {\pi }^{+}{\pi }^{-}\gamma$ decay

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