Neutron drops and Skyrme energy-density functionals
Anno: 1996
Autori: Pudliner B.S., Smerzi A., Carlson J., Pandharipande V.R., Pieper S.C., Ravenhall D.G.
Affiliazione autori: Department of Physics, University of Illinois, Urbana, IL, 61801-3080, United States; Laboratorio Nazionale del Sud, Istituto Nazionale di Fisica Nucleare, Catania, 95125, v Andrea Doria, Italy; Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, United States; Physics Division, Argonne National Laboratory, Argonne, IL, 60439-4843, United States
Abstract: The J(pi) = 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 nu(18) two-nucleon and Urbana UC 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.
Giornale/Rivista: PHYSICAL REVIEW LETTERS
Volume: 76 (14) Da Pagina: 2416 A: 2419
Parole chiavi: Ground-state; R-process; Nuclear; MatterDOI: 10.1103/PhysRevLett.76.2416Citazioni: 77dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-06-29Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
