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A unitary model for meson-nucleon scattering

T. Feuster·U. Mosel
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Abstract

In an effective Lagrangian model employing the K-matrix approximation we extract nucleon resonance parameters. To this end we analyze simultaneously all available data for reactions involving the final states $πN$, $ππN$, $ηN$ and $K Λ$ in the energy range $m_N + m_π \le \sqrt s \le 1.9$ GeV. The background contributions are generated consistently from the relevant Feynman amplitudes, thus significantly reducing the number of free parameters.

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T. Feuster, U. Mosel. 1998-01-23. A unitary model for meson-nucleon scattering. https://doi.org/10.1103/physrevc.58.457

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