https://doi.org/10.1051/epjconf/20100303018
Two- and three-body resonances in the 
NN
− πΣN system
Nuclear Physics Institute, 25068
Řež, Czech
Republic
a e-mail: shevchenko@ujf.cas.cz
One of the most important characteristics of a two-body interaction is existence
and properties of its bound states or resonances. When the interaction is used
in a few- or many-body calculation they also strongly influence the properties of
the few- or many-body system. We investigate the dependence of the three-body
resonance properties in the NN system on the different models
of N interaction, providing one or two poles for
Λ(1405) resonance. The NN − πΣN system is described by coupled-channel Faddeev equations in AGS
form, our two-body N − πΣ interaction models
reproduce all existing experimental data on K−
p scattering and K−
p atom level shift.
© Owned by the authors, published by EDP Sciences, 2010
