Energy-density functionals inspired by effective-field theories: Applications to neutron drops

Jérémy Bonnard, Marcella Grasso, and Denis Lacroix
Phys. Rev. C 98, 034319 – Published 24 September 2018; Erratum Phys. Rev. C 103, 039901 (2021)

Abstract

New energy-density functionals (EDFs) inspired by effective-field theories have been recently proposed. The present work focuses on three such functionals, which were developed to produce satisfactory equations of state for nuclear matter. We aim to extend these functionals to treat finite systems including a spin-orbit contribution and pairing correlations. We illustrate here a first step toward this direction, namely a generalization of such functionals tailored to perform applications to neutron gases confined in harmonic traps. Sets of available ab initio results are used as benchmark pseudodata for adjusting the additional parameters (with respect to the nuclear matter case) that have to be introduced for finite-size systems. Several quantities are predicted and compared to ab initio and other EDF results such as total energies, potentials, and density profiles. The associated effective masses are also analyzed. Two of these functionals globally provide predictions that are close to one another as well as to ab initio values when available. It is shown that, in general, this is not the case for several currently used Skyrme functionals. Directions for improving the third functional are discussed.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
3 More
  • Received 5 June 2018

DOI:https://doi.org/10.1103/PhysRevC.98.034319

©2018 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Erratum

Authors & Affiliations

Jérémy Bonnard*, Marcella Grasso, and Denis Lacroix

  • Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay Cedex, France

  • *bonnard@ipno.in2p3.fr
  • grasso@ipno.in2p3.fr
  • lacroix@ipno.in2p3.fr

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 98, Iss. 3 — September 2018

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×