Extended Skyrme Equation of State in asymmetric nuclear matter

Abstract

We present a new equation of state for infinite systems (symmetric, asymmetric and neutron matter) based on an extended Skyrme functional constrained by microscopic Brueckner-Bethe-Goldstone results. The resulting equation of state reproduces with very good accuracy the main features of microscopic calculations and it is compatible with recent measurements of two times Solar-mass neutron stars. We provide all necessary analytical expressions to facilitate a quick numerical implementation of quantities of astrophysical interest.

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• Convergence of density-matrix expansions for nuclear interactions
• Extended Skyrme pseudo-potential deduced from infinite matter properties
• Tools for incorporating a D-wave contribution in Skyrme energy density functionals

Cited by in corpus (12)

• Strong correlations of neutron star radii with the slopes of nuclear matter incompressibility and symmetry energy at saturation
• Solution of Hartree-Fock-Bogoliubov equations and fitting procedure using N2LO Skyrme pseudo-potential in spherical symmetry
• Extended Skyrme interactions for transport model simulations of heavy-ion collisions
• Analysis of nuclear structure in a converging expansion scheme
• A new statistical method for the structure of the inner crust of neutron stars
• An introduction to Bootstrap for nuclear physics
• Nuclear collective dynamics in the lattice Hamiltonian Vlasov method
• Systematic analysis of inner crust composition using the extended Thomas-Fermi approximation with pairing correlations
• Infinite matter properties and zero-range limit of nonrelativistic finite-range interactions
• Light clusters in dilute heavy-baryon admixed nuclear matter
• Linear Response Theory with finite-range interactions
• Partial wave decomposition of finite-range effective tensor interaction