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arXiv · hep-ph/9710317

Scalar sigma meson via chiral and crossing dynamics

M. D. Scadron
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Abstract

We show that the non-strange scalar $σ$ meson, as now reported in the 1996 PDG tables, is a natural consequence of crossing symmetry as well as chiral dynamics for both strong interaction low energy $ππ$ scattering and also $K \to 2π$ weak decays.

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M. D. Scadron. 1997-10-10. Scalar sigma meson via chiral and crossing dynamics. https://doi.org/10.1007/s100520050327

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