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25 April 2024

» arxiv » nucl-th/9911076

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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 ;
Date:	24 Nov 1999
Subject:	nucl-th
Abstract:	We analyze Pion Nucleon Scattering up to 700 MeV using a simple, relativistic, unitary modelcite{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.
Source:	arXiv, nucl-th/9911076
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