Extension and parameterization of high-order density dependence in Skyrme forces

Abstract

The three-body force is indispensable in nuclear energy density functionals which leads to a density dependent two-body term in the Hartree-Fock approach. Usually a single factional power of density dependency has been adopted. We consider the possibility of an additional higher-order density dependence in extended Skyrme forces. As a result, new extended Skyrme parametertizations based on the SLy4 force are obtained and the improvements in descriptions of global nuclei have been demonstrated. The higher-order term can also substantially affect nuclear properties in the high density region in general ways.

arXiv comment6 pages, 5 figures

References in corpus (18)

• Further explorations of Skyrme-Hartree-Fock-Bogoliubov mass formulas. XII: Stiffness and stability of neutron-star matter
• Nuclear Energy Density Optimization
• Three-body forces and the limit of oxygen isotopes
• Nuclear energy density optimization: Large deformations
• The Skyrme Interaction in finite nuclei and nuclear matter
• Determination of the parameters of a Skyrme type effective interaction using the simulated annealing approach
• Continuum effects and three-nucleon forces in neutron-rich oxygen isotopes
• Nuclear energy density optimization: Shell structure
• Uncertainty Quantification for Nuclear Density Functional Theory and Information Content of New Measurements
• Local nuclear energy density functional at next-to-next-to-next-to-leading order
• Exploring the extended density-dependent Skyrme effective forces for normal and isospin-rich nuclei to neutron stars
• Microscopically-based energy density functionals for nuclei using the density matrix expansion: Implementation and pre-optimization
• Beyond-mean-field theories with zero-range effective interactions. A way to handle the ultraviolet divergence
• Ab Initio study of neutron drops with chiral Hamiltonians
• Symmetry energy systematics and its high density behavior
• Compressibility, effective mass and density dependence in Skyrme forces
• Effective 3-Body Interaction for Mean-Field and Density-Functional Theory
• Regularization of zero-range effective interactions in finite nuclei

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• Probing Surface Quantum Flows in Deformed Pygmy Dipole Modes
• Constraints on the neutron drip-line with the newly observed 39Na
• From finite nuclei to neutron stars : the essential role of high-order density dependence in effective forces
• Global analysis of Skyrme forces with higher-order density dependence
• Correlations between nuclear landscape boundaries and neutron-rich r-process abundances
• Optimized nuclear energy density functionals including long-range pion contributions
• Towards microscopic studies of survival probabilities of compound superheavy nuclei