Münster 2002 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 43: Theory VII
HK 43.5: Vortrag
Donnerstag, 14. März 2002, 17:30–17:45, A
Nucleon-Nucleon potential from two body Dirac equations at medium energies — •Davaadorj Bayansan1, Andreas Funk1, Bin Liu2, Horace W. Crater2, Heinrich V. von Geramb1, and Hugo Arellano3 — 1Nuclear Theory , University Hamburg — 2Space Institute, University Tennessee, Tullahoma — 3Fisica, Universidad de Chile, Santiago
We investigate the implication and use of Dirac’s instant form dynamics in applications of two-body Dirac equations. First, it yields a center of momentum reduction of the two-body Dirac equations to Schrödinger-like equations with effective energy dependent potentials. Second, a link to known and optimally fitted NN potentials (Nijmegen,AV18) as well as quantum inversion potentials is made. Third, the effective potentials are extented, above meson production threshold, as NN optical potentials. The latest NN phase shifts up to 3 GeV are fitted. Some application of the resulting NN potentials in medium energy nucleon-nucleus scattering, formulated in terms of NA full folding optical models, are also shown.