New Kohn-Sham density functional based on microscopic nuclear and neutron matter equations of state

M. Baldo, L. M. Robledo, P. Schuck, and X. Viñas
Phys. Rev. C 87, 064305 – Published 10 June 2013

Abstract

A new version of the Barcelona-Catania-Paris energy functional is applied to a study of nuclear masses and other properties. The functional is largely based on calculated ab initio nuclear and neutron matter equations of state. Compared to typical Skyrme functionals having 10–12 parameters apart from spin-orbit and pairing terms, the new functional has only 2 or 3 adjusted parameters, fine tuning the nuclear matter binding energy and fixing the surface energy of finite nuclei. An energy rms value of 1.58 MeV is obtained from a fit of these three parameters to the 579 measured masses reported in the Audi and Wapstra [Nucl. Phys. A 729, 337 (2003)] compilation. This rms value compares favorably with the one obtained using other successful mean field theories, which range from 1.5 to 3.0 MeV for optimized Skyrme functionals and 0.7 to 3.0 for the Gogny functionals. The other properties that have been calculated and compared to experiment are nuclear radii, the giant monopole resonance, and spontaneous fission lifetimes.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
6 More
  • Received 27 September 2012

DOI:https://doi.org/10.1103/PhysRevC.87.064305

©2013 American Physical Society

Authors & Affiliations

M. Baldo*

  • Instituto Nazionale di Fisica Nucleare, Sezione di Catania, Via Santa Sofia 64, I-95123 Catania, Italy

L. M. Robledo

  • Dep. Física Teórica (Módulo 15), Universidad Autónoma de Madrid, E-28049 Madrid, Spain

P. Schuck

  • Institut de Physique Nucléaire, CNRS, UMR8608, F-91406 Orsay, France, Université Paris-Sud, Orsay F-91505, France, and Laboratoire de Physique et Modélisation des Milieux Condensés, CNRS et Université Joseph Fourier, 25 Avenue des Martyrs, BP 166, F-38042 Grenoble Cedex 9, France

X. Viñas§

  • Departament d’Estructura i Constituents de la Matèria and Institut de Ciències del Cosmos, Facultat de Física, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain

  • *baldo@ct.infn.it
  • luis.robledo@uam.es
  • schuck@ipno.in2p3.fr
  • §xavier@ecm.ub.es

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 87, Iss. 6 — June 2013

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
×