The role of S_11 resonance in pi N Scattering

Details The role of S_11 resonance in pi N Scattering The role of S_11 resonance in pi N Scattering

1999-11-24

arxiv.org/abs/nucl-th/9911076v2

Physics

Nuclear Physics

Nuclear Theory

8 pages, 5 figures, to reproduce the figures, please refer to the txt file called "readme"

Scientific paper

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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