Peculiarities in multichannel interaction amplitudes for meson-meson scattering and scalar meson spectroscopy

Details Peculiarities in multichannel interaction amplitudes for meson-meson scattering and scalar meson spectroscopy Peculiarities in multichannel interaction amplitudes for meson-meson scattering and scalar meson spectroscopy

2000-06-27

arxiv.org/abs/hep-ph/0006303v1

Acta Phys.Polon. B31 (2000) 2467-2470

Physics

High Energy Physics

High Energy Physics - Phenomenology

presented by R. Kaminski at the Meson 2000 Conference, Cracow, Poland, May 19-23, 2000; 5 pages including 2 figures, to appear

Scientific paper

Interactions in coupled channels pipi, KKbar and an effective 2pi2pi in
scalar-isoscalar wave have been analysed. Influence of interchannel couplings
on analytical structure of multichannel interaction amplitudes has been
studied. Interplay of S-matrix zeroes and poles and their relation with
parameters of scalar resonances has been investigated.

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