Dresden 2000 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 14: Postersitzung / Theorie
HK 14.16: Poster
Donnerstag, 23. März 2000, 10:15–12:45, B 113
Chiral approach to nucleon-nucleon scattering — •Matthias Lutz — Gesellschaft für Schwerionenforschung, 64291 Darmstadt
We present a new chiral expansion scheme for the nucleon-nucleon scattering amplitude which preserves unitarity exactly. The leading order terms of the isospin one scattering amplitude in the 1S0 partial wave are evaluated. Our chiral description of the 1S0-phase shift does compete in quality with modern phenomenological nucleon-nucleon potentials. We describe elastic and inelastic scattering quantitatively up to laboratory energies of Elab ≃ 600 MeV.