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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Bibliographic Details
Published in:arXiv.org 1999-11
Main Authors: Yohanes Surya, Kam, Chan Hin, Au Yeung, T C, Shangguan, W Z, Purwanto, Wirawan, Eddy, Yusuf, Kusno, Darmadi, Oki Gunawan
Format: Article
Language:English
Subjects:
Integral equations
Resonance scattering
Online Access:Get full text
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Summary: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.
ISSN:2331-8422