Neutron Drops and Skyrme Energy-Density Functionals

Phys. Rev. Lett. 76, 2416 – Published 1 April 1996
B. S. Pudliner, A. Smerzi, J. Carlson, V. R. Pandharipande, Steven C. Pieper, and D. G. Ravenhall

Abstract

The Jπ=0+ ground state of a drop of 8 neutrons and the lowest 1/2- and 3/2- states of 7-neutron drops, all in an external well, are computed accurately with variational and Green's function Monte Carlo methods for a Hamiltonian containing the Argonne v18 two-nucleon and Urbana IX three-nucleon potentials. These states are also calculated using Skyrme-type energy-density functionals. Commonly used functionals overestimate the central density of these drops and the spin-orbit splitting of 7-neutron drops. Improvements in the functionals are suggested.

DOI: http://dx.doi.org/10.1103/PhysRevLett.76.2416

  • Received 5 September 1995
  • Published in the issue dated 1 April 1996

© 1996 The American Physical Society

Authors & Affiliations

B. S. Pudliner1, A. Smerzi1,2, J. Carlson3, V. R. Pandharipande1, Steven C. Pieper4, and D. G. Ravenhall1

  • 1Department of Physics, University of Illinois, Urbana, Illinois 61801-3080
  • 2Laboratorio Nazionale del Sud, Istituto Nazionale di Fisica Nucleare, v Andrea Doria, 95125 Catania, Italy
  • 3Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
  • 4Physics Division, Argonne National Laboratory, Argonne, Illinois 60439-4843

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