Chiral dynamics and pion-nucleon scattering around the N*(1535) resonance

Abstract

We study the S-wave interaction of mesons with baryons in the strangeness S=0 sector in a coupled channel unitary approach. The basic dynamics is drawn from the lowest order meson baryon chiral Lagrangians. Small modifications inspired by models with explicit vector meson exchange in the t-channel are also considered. In addition the pi pi N channel is included and shown to have an important repercussion in the results, particularly in the isospin 3/2 sector.

Comments: 3 pages, 2 figues, Talk given by T. Inoue at 9th International Conference on Meson-Nucleon Physics and the Structure of Nucleon (MENU2001), Washington, DC, July 2001