The Present Status on σ and κ Meson Properties | Zendy

Muneyuki Ishida | Zendy

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The Present Status on σ and κ Meson Properties

Author(s) -

Muneyuki Ishida

Publication year - 2003

Publication title -

progress of theoretical physics supplement

Language(s) - English

Resource type - Journals

ISSN - 0375-9687

DOI - 10.1143/ptps.149.190

Subject(s) - scattering , meson , physics , sigma , amplitude , sigma model , scalar (mathematics) , production (economics) , particle physics , scattering amplitude , mathematics , quantum mechanics , economics , macroeconomics , geometry , nonlinear system

The recent experimental data of both pipi / Kpi scattering and productionprocesses, suggesting the existence of scalar sigma and kappa mesons, arereviewed. In many pipi /Kpi production processes the direct effects of theirproductions are observed, while they are, because of chiral symmetry, hidden inscattering processes, and now sigma(500--600) and kappa(800--900) areconsidered to be confirmed experimentally. The recent criticism on our methodof analyses, which is based on the long believed prejudice of universal pipi /Kpi phase through scattering and production amplitudes, is explained not to bevalid.Comment: draft of the proceedings of "Chiral' 02" in Kyoto, Oct 200

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