Semi-contact 3-body interaction for nuclear density functional theory

TL;DR

This paper introduces a semi-contact 3-body effective interaction to improve nuclear density functional theory, enabling better simultaneous description of various nuclear matter properties compared to traditional density-dependent interactions.

Contribution

The paper proposes a novel semi-contact 3-body interaction as an alternative to density-dependent interactions in nuclear DFT, enhancing its predictive capabilities.

Findings

Successfully describes symmetric, neutron, polarized, and neutron polarized nuclear matter

Replicates effective mass properties accurately

Offers a promising replacement for density-dependent interactions

Abstract

To solve difficulties related to the use of nuclear density functional theory applied in its beyond mean-field version, we introduce a semi-contact 3-body effective interaction. We show that this interaction is a good candidate to replace the widely used density dependent effective interaction. The resulting new functionals are able to describe symmetric, neutron, polarized and neutron polarized nuclear matter as well as the effective mass properties simultaneously.