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The role of S_11 resonance in pi N Scattering

Yohanes Surya·Kam Chan Hin·T. C. Au Yeung·W. Z. Shangguan·Wirawan Purwanto·Eddy Yusuf·Darmadi Kusno·Oki Gunawan
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Abstract

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.

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Yohanes Surya, Kam Chan Hin, T. C. Au Yeung, W. Z. Shangguan, Wirawan Purwanto, Eddy Yusuf, Darmadi Kusno, Oki Gunawan. 1999-11-25. The role of S_11 resonance in pi N Scattering. https://arxiv.org/abs/nucl-th/9911076

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