The role of S₁1 resonance in pi N Scattering

1999/11/24 by Yohanes Surya, Surya, Yohanes, Hin, Kam Chan +12
Physics and Astronomy · #FOS: Physical sciences #Nuclear Theory (nucl-th) #Nuclear physics research studies #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.nucl-th/9911076

openalex publication_date 1999/11/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We analyze Pion Nucleon Scattering up to 700 MeV using a simple, relativistic, unitary model\cite1. The kernel of the integral equation includes nucleon, roper, delta, D₁3 as well as S₁1 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 S₁₁ are presented.

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