3 papers
hep-ph2001
Application of Roy's equations to analysis of pion-pion experimental data
B. Loiseau, R. Kaminski, L. Lesniak
The scalar-isoscalar, scalar-isotensor and vector-isovector pion-pion partial wave amplitudes are analyzed. Preliminary results indicate that only the scalar-isoscalar amplitude fi…
hep-ph2000
Peculiarities in multichannel interaction amplitudes for meson-meson scattering and scalar meson spectroscopy
R. Kaminski, L. Lesniak, B. Loiseau
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 mul…
hep-ph2000
Theoretical constraints on interaction amplitudes of light mesons
R. Kaminski, L. Lesniak, K. Rybicki
We impose unitarity constraints on the S-wave isoscalar pion-pion amplitudes extracted from the analysis of the pi- p ---> pi+ pi- n data which have been measured by the CERN-Craco…