New density-independent interactions for nuclear structure calculations

K. Bennaceur; J. Dobaczewski; F. Raimondi

doi:10.1051/epjconf/20146602031

New density-independent interactions for nuclear structure calculations

K. Bennaceur, J. Dobaczewski, F. Raimondi

Physics

Research output: Contribution to conference › Paper › peer-review

Abstract

We present a new two-body finite-range and momentum-dependent but density-independent effective interaction, which can be interpreted as a regularized zero-range 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 low-energy density functional, the physical three-body effects can be efficiently absorbed in effective two-body terms. The new interaction gives a very 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.

Original language	English
DOIs	https://doi.org/10.1051/epjconf/20146602031
Publication status	Published - 20 Mar 2014

Bibliographical note

4 pages, including 2 figures and 1 table, explanations added, Figure 1 corrected, to be published in EPJ Web of Conferences

Keywords

nucl-th

Access to Document

10.1051/epjconf/20146602031

Cite this

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N2 - We present a new two-body finite-range and momentum-dependent but density-independent effective interaction, which can be interpreted as a regularized zero-range 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 low-energy density functional, the physical three-body effects can be efficiently absorbed in effective two-body terms. The new interaction gives a very 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.

AB - We present a new two-body finite-range and momentum-dependent but density-independent effective interaction, which can be interpreted as a regularized zero-range 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 low-energy density functional, the physical three-body effects can be efficiently absorbed in effective two-body terms. The new interaction gives a very 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.

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