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Spin-5/2 resonance effects in a coupled channel nucleon resonance analysis

V. Shklyar, G. Penner, U. Mosel

hep-pharXiv:hep-ph/0301152

Abstract

Spin- resonance contributions in pion-nucleon scattering are investigated within the coupled channel K-matrix approach for c.m. energies up to s= 2 GeV. All previously studied πN, 2πN, ηN, K Λ, K Σ, and ωN final states are included. We find a significant improvement of χ2 in almost all channels by inclusion of the spin- states. The obtained coupling parameters are discussed.

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