Springer LINK: The European Physical Journal A - Abstract Volume 2 Issue 4 (1998) pp 371-377

The European Physical Journal A

ISSN: 1434-6001 (printed version)
ISSN: 1434-601X (electronic version)

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Abstract Volume 2 Issue 4 (1998) pp 371-377

nuclear structure: Unrestricted symmetry-projected Hartree-Fock-Bogoliubov calculations for SD-shell nuclei

E. Hammarén (1)(2), K.W. Schmid (1), A. Faessler (1)

(1) Institut für Theoretische Physik der Universität Tübingen, Auf der Morgenstelle 14, D-72076 Tübingen, Germany
(2) Department of Physics, University of Jyväskylä, P.O. Box 35, SF-40351 Jyväskylä, Finland

Received: 26 February 1998 / Revised version: 8 May 1998

Abstact: The solution of the Hartree-Fock-Bogoliubov problem with restoration of the broken symmetries before the variation has been generalized for the use of totally unrestricted quasi-particle determinants. With this method doubly-even, doubly-odd and odd nuclei can be treated on the same footing. Comparison with the results of complete shell-model diagonalizations shows that already one-determinant representations yield a very good approximation to the exact solutions even in the middle of the 1s0d shell. The problem is especially suited for numerical implementation on parallel computers. First tests show a linear dependence of the inverse CPU time with the number of processors used.

PACS: 21.10.-k Properties of nuclei, nuclear energy levels - 21.60.Jz Hartree-Fock and random-phase approximation

Communicated by D. Schwalm

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