Isospin Polarization in the Nuclear Many-Body Problem

C. A. Engelbrecht; R. H. Lemmer

doi:10.1103/PhysRevLett.24.607

Isospin Polarization in the Nuclear Many-Body Problem

C. A. Engelbrecht and R. H. Lemmer

Phys. Rev. Lett. 24, 607 – Published 16 March 1970

Abstract

For nuclei with $N > Z$ , isospin invariance is explicitly broken in the Hartree-Fock (HF) approximation. It is shown that isospin polarization correlations in the HF ground state restore this symmetry and lead to a natural framework for a microscopic description of analog states. We discuss the approximations under which the Lane potential model is obtained.

Received 19 January 1970

DOI:https://doi.org/10.1103/PhysRevLett.24.607

Authors & Affiliations

C. A. Engelbrecht

Atomic Energy Board, Pelindaba, Transvaal, South Africa

R. H. Lemmer^*,†

Institut für Theoretische Physik der Universität Frankfurt am Main, Frankfurt am Main, Germany

^*Part of this work was done as visiting research leader at the South African Atomic Energy Board.
^†Permanent address: Physics Department, Rand Afrikaans University, Johannesburg, Republic of South Africa.