Influence of the N*(1440) and N*(1535) Resonances in Intermediate Energy pp and np Scattering

Details Influence of the N*(1440) and N*(1535) Resonances in Intermediate Energy pp and np Scattering Influence of the N*(1440) and N*(1535) Resonances in Intermediate Energy pp and np Scattering

2007-08-27

arxiv.org/abs/0708.3692v1

Physics

Nuclear Physics

Nuclear Theory

12 pages, 20 Figs

Scientific paper

Motivated by a recent measurement of proton-proton elastic scattering observables up to 3.0 GeV, we investigate the description of those data within models of the nucleon-nucleon (NN) interaction valid above the pion production threshold. In addition to including the well known Delta resonance we incorporate two low-lying N* resonances, the N*(1440) and the N*(1535), and study their influence on pp and np observables for projectile laboratory kinetic energies up to 1.5 GeV.

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