Collective excitations in superfluid nuclei with finite-range interactions

Collective excitations in superfluid nuclei with finite-range interactions

For the first time, the Gogny force, a finite range interaction, is used to calculate self-consistently low-lying vibrational states and giant resonances in superfluid nuclei. The theoretical framework is based on the quasiparticle random phase approximation, starting from ground state wave function...

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Bibliographic Details
Published in:Nuclear physics. A Vol. 726; no. 1; pp. 3 - 36
Main Authors: Giambrone, G., Scheit, S., Barranco, F., Bortignon, P.F., Colò, G., Sarchi, D., Vigezzi, E.
Format: Journal Article
Language:English
Published: Elsevier B.V 06-10-2003
Online Access:Get full text
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Summary:For the first time, the Gogny force, a finite range interaction, is used to calculate self-consistently low-lying vibrational states and giant resonances in superfluid nuclei. The theoretical framework is based on the quasiparticle random phase approximation, starting from ground state wave functions obtained according to the Hartree–Fock–Bogoliubov theory. We study the isotopic chains of oxygen, nickel and tin isotopes, extending from the valley of stability towards the drip lines. It is found that the comparison with the experimental data is not very satisfactory. A critical analysis is attempted.
ISSN:0375-9474
DOI:10.1016/S0375-9474(03)01602-6