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Peculiarities in multichannel interaction amplitudes for meson-meson scattering and scalar meson spectroscopy
Kaminski R., Lesniak L., Loiseau B.
Dans Acta Physica Polonica B - Meson 2000 Workshop, Cracow : Pologne (2000) - http://hal.in2p3.fr/in2p3-00193689
Physique/Physique des Hautes Energies - Phénoménologie
Peculiarities in multichannel interaction amplitudes for meson-meson scattering and scalar meson spectroscopy
R. Kaminski, L. Lesniak, B. Loiseau1
1 :  LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
http://www-lpnhep.in2p3.fr
CNRS : UMR7585 – IN2P3 – Université Pierre et Marie Curie (UPMC) - Paris VI – Université Paris VII - Paris Diderot
Barre 12-22, 1er étage 4 Place Jussieu 75252 Paris Cedex 05
France
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.

Communications avec actes
2000
2000
Acta Physica Polonica B
internationale
31

Meson 2000 Workshop
Cracow
Pologne
19/05/2000
23/05/2000
R. Kaminski

11.80.Gw, 13.60.Le, 13.75.Lb, 14.40.Cs
presented by R. Kaminski at the Meson 2000 Conference, Cracow, Poland, May 19-23, 2000; 5 pages including 2 figures, to appear in Acta Physica Polonica B
Lien vers le texte intégral : 
http://fr.arXiv.org/abs/hep-ph/0006303