New density-independent interactions for nuclear structure calculations

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.

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

References in corpus (4)

• Particle-Number Projection and the Density Functional Theory
• Particle-Number Restoration within the Energy Density Functional formalism: Nonviability of terms depending on noninteger powers of the density matrices
• Solution of the Skyrme-Hartree-Fock-Bogolyubov equations in the Cartesian deformed harmonic-oscillator basis. (VII) HFODD (v2.49t): a new version of the program
• Skyrme pseudo-potential-based EDF parametrisation for spuriousity-free MR-EDF calculations

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• Nonlocal energy density functionals for pairing and beyond-mean-field calculations
• Simple regularization scheme for multi-reference density functional theories
• Ab initio-driven nuclear energy density functional method. A proposal for safe/correlated/improvable parametrizations of the off-diagonal EDF kernels
• Properties of spherical and deformed nuclei using regularized pseudopotentials in nuclear DFT
• Skyrme interaction to second order in nuclear matter
• Semi-contact 3-body interaction for nuclear density functional theory
• Landau parameters for energy density functionals generated by local finite-range pseudopotentials
• Quadrupole Strength in Isobaric Triplets
• Harmonic potential theorem: \\extension to spin-, velocity- and density-dependent interactions