Variational calculation of the ground state of O16

Phys. Rev. C 46, 1741 – Published 1 November 1992
Steven C. Pieper, R. B. Wiringa, and V. R. Pandharipande

Abstract

We report variational calculations of the ground state of O16 with realistic two- and three-nucleon interactions. The trial wave function is constructed from pair- and triplet-correlation operators acting on a product of single-particle determinants. These operators include central, spin, isospin, tensor, spin-orbit, and three-nucleon potential components. Expectation values are evaluated with a cluster expansion for the noncentral correlations; terms in the expansion are evaluated exactly using Monte Carlo integration. The optimal trial function is obtained by minimizing the energy through the four-body cluster level. Results are reported for the ground-state binding energy, nucleon density and momentum distributions, charge form factor, and longitudinal structure function. They are also compared with the available results for few-body nuclei and nuclear matter with the same interactions.

DOI: http://dx.doi.org/10.1103/PhysRevC.46.1741

  • Received 18 June 1992
  • Published in the issue dated November 1992

© 1992 The American Physical Society

Authors & Affiliations

Steven C. Pieper and R. B. Wiringa

  • Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

V. R. Pandharipande

  • Department of Physics, University of Illinois, Urbana, Illinois 61801

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