New density-independent interactions for nuclear structure calculations
1 Université de Lyon, F-69003 Lyon, France; Institut de Physique Nucléaire de Lyon, CNRS/IN2P3, Université Lyon 1, F-69622 Villeurbanne Cedex, France
2 Institute of Theoretical Physics, Faculty of Physics, University of Warsaw, ul. Hoża 69, PL-00681 Warsaw, Poland
3 Department of Physics, PO Box 35 (YFL), FI-40014 University of Jyväskylä, Finland
4 TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T2A3, Canada
Published online: 20 March 2014
We present a new two-body finite-range and momentum-dependent but density-independent effective interaction, which can be interpreted as a regularized zerorange force. We show that no three-body or density-dependent terms are needed for a correct description of saturation properties in infinite matter, that is, on the level of lowenergy density functional, the physical three-body effects can be efficiently absorbed in effective two-body terms. The new interaction gives a satisfying equation of state of nuclear matter and opens up extremely interesting perspectives for the mean-field and beyond-mean-field descriptions of atomic nuclei.
© Owned by the authors, published by EDP Sciences, 2014
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