The role of S_11 resonance in pi N Scattering

The role of S_11 resonance in pi N Scattering

We analyze Pion Nucleon Scattering up to 700 MeV using a simple, relativistic, unitary model\cite{1}. The kernel of the integral equation includes nucleon, roper, delta, D_13 as well as S_11 poles with their corresponding crossed pole terms approximated by contact interactions. The s- and p- wave ph...

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Hauptverfasser: Surya, Yohanes, Hin, Kam Chan, Yeung, T. C. Au, Shangguan, W. Z, Purwanto, Wirawan, Yusuf, Eddy, Kusno, Darmadi, Gunawan, Oki
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Sprache:eng
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Physics - Nuclear Theory
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Zusammenfassung:We analyze Pion Nucleon Scattering up to 700 MeV using a simple, relativistic, unitary model\cite{1}. The kernel of the integral equation includes nucleon, roper, delta, D_13 as well as S_11 poles with their corresponding crossed pole terms approximated by contact interactions. The s- and p- wave phase shifts are calculated from the model and shown to agree very well with the values derived from pi N scattering data \cite {2}. All parameters which involve S_{11} are presented.
DOI:10.48550/arxiv.nucl-th/9911076