The properties of the $σ$ and $κ$ resonances in a new unitarization approach

Details The properties of the $σ$ and $κ$ resonances in a new unitarization approach The properties of the $σ$ and $κ$ resonances in a new unitarization approach

2003-09-21

arxiv.org/abs/hep-ph/0309242v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 4 figures. Talk given by Zheng at Tenth International Conference on Hadron Spectroscopy, Aschaffenburg, Germany 2003

Scientific paper

10.1063/1.1799725

A new unitarization approach is discussed and applied to study the elastic $\pi K$ scattering process. The existence of the light $\kappa$ resonance is firmly established if the scattering length in the I=1/2 channel does not deviate too much from its value obtained from chiral perturbation theory, and a precise determination to the mass and width of the $\kappa$ resonance requires a precise determination of the scattering length parameter.

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