The radiative decay ϕ → γππ in a coupled-channel model and the structure of f0(980)
Paul Scherrer Institute, 5232, Villigen PSI, Switzerland
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Published online: 15 September 2000
A coupled-channel model is used to study the nature of the scalar mesons produced in the decay ϕ → γππ. The K 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 q spectral density.
PACS: 12.39.-x Phenomenological quark models – / 12.39.Pn Potential models – / 13.40.Hq Electromagnetic decays –
© Società Italiana di Fisica and Springer-Verlag, 2000