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

V. Shklyar·G. Penner·U. Mosel
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Abstract

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

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V. Shklyar, G. Penner, U. Mosel. 2003-01-19. Spin-5/2 resonance effects in a coupled channel nucleon resonance analysis. https://arxiv.org/abs/hep-ph/0301152

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