Toroidal dipole resonances in the relativistic random phase approximation

Vretenar, Dario and Paar, Nils and Ring, Peter and Nikšić, Tamara (2002) Toroidal dipole resonances in the relativistic random phase approximation. Physical Review C, 65 (2). pp. 21301-4. ISSN 0556-2813

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The isoscalar toroidal dipole strength distributions in spherical nuclei are calculated in the framework of a fully consistent relativistic random phase approximation. It is suggested that the recently observed “low-lying component of the isoscalar dipole mode” might correspond to the toroidal giant dipole resonance. Although predicted by several theoretical models, the existence of toroidal resonances has not yet been confirmed in experiment. The strong mixing between the toroidal resonance and the dipole compression mode might help to explain the large discrepancy between theory and experiment on the position of isoscalar giant dipole resonances.

Item Type: Article
Keywords: dipole resonances, relativistic random phase approximation
Date: January 2002
Subjects: NATURAL SCIENCES > Physics > Nuclear Physics
Additional Information: Copyright (2002) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 23 May 2014 07:49
Last Modified: 23 May 2014 07:49

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