Low Momentum NN-interactions and Nuclear Matter Calculations

2005/11/10 by H. S. Kohler, Kohler, H. S.
Physics and Astronomy · #FOS: Physical sciences #Nuclear Theory (nucl-th) #nucl-th

paper · pdf · doi:10.48550/arxiv.nucl-th/0511030

9 pages and 10 figures

arxiv created 2005/11/22 · arxiv updated 2009/12/01

Abstract

Separable nucleon-nucleon potentials are calculated using inverse scattering techniques as presented in previously published work. The dependence of the potentials on the momentum cut-off of the scattering phase-shifts is studied. Some comparison is made with the V-low-k potential. The effect of the cut-off on nuclear matter binding energy calculated by standard Brueckner theory is also presented. It is foumd that a cut-off larger than about 4 fm-1 will keep the error to within one Mev around saturation density. While the potentials are cut-off dependent the effective interaction represented by the Brueckner K-matrix is less sensitive to this cut-off. This is in particular found to be the case for the 1S0 state.

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• Modern Shell-Model Calculations
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• Inverse-scattering separable NN potential constrained to phase-shift data up to 2.5 GeV. I.- Uncoupled states