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arXiv · hep-ph/9705437

Analysis of Kπ-scattering phase shift and existence of κ(900)-particle

Shin Ishida·Muneyuki Ishida·Taku Ishida·Kunio Takamatsu·Tsuneaki Tsuru
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Abstract

Recently we have shown an evidence for existence of σ-particle in the previous works; where the ππS-wave phase shift is reanalyzed, by introducing a repulsive background suggested by the chiral symmetry, and by applying a new method of Interfering Breit-Wigner Amplitudes. In this work we also show, reanalyzing the KπS-wave phase shift from a similar standpoint, an evidence for existence of κ(900), possibly to be a member of σ-nonet.

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Shin Ishida, Muneyuki Ishida, Taku Ishida, Kunio Takamatsu, Tsuneaki Tsuru. 1997-05-27. Analysis of Kπ-scattering phase shift and existence of κ(900)-particle. https://doi.org/10.1143/ptp.98.621

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