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Property of σ(600) and Chiral Symmetry

M. Y. Ishida

hep-pharXiv:hep-ph/9610326

Abstract

The iso-singlet scalar resonance σ(600), found in the recent ππphase shift analysis, is pointed out to have the properties of the σmeson in the σmodel. The role of the λϕ4 interaction as a source of the ``background phase", which was essential there, is also discussed.

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