We present a thorough analysis of the effects of tensor interaction on the multipole response of magic nuclei, using the fully self-consistent random phase approximation model with Skyrme interactions. We disentangle the modifications to the static mean field induced by the tensor terms, and the specific features of the residual particle-hole (p-h) tensor interaction, for quadrupole (2+), octupole (3-), and also magnetic dipole (1+) responses. It is pointed out that the tensor force has a larger effect on the magnetic dipole states than on the natural parity states 2+ and 3-, especially at the mean-field level. Perspectives for a better assessment of the tensor force parameters are discussed.

Effects of the tensor force on the multipole response in finite nuclei / L. G. Cao, G. Colò, H. Sagawa, P. F. Bortignon, L. Schiacchitano. - In: PHYSICAL REVIEW. C, NUCLEAR PHYSICS. - ISSN 0556-2813. - 80:6(2009 Dec 09), pp. 064304.064304.1-064304.064304.12.

Effects of the tensor force on the multipole response in finite nuclei

G. Colò
Secondo
;
P. F. Bortignon
Penultimo
;
2009

Abstract

We present a thorough analysis of the effects of tensor interaction on the multipole response of magic nuclei, using the fully self-consistent random phase approximation model with Skyrme interactions. We disentangle the modifications to the static mean field induced by the tensor terms, and the specific features of the residual particle-hole (p-h) tensor interaction, for quadrupole (2+), octupole (3-), and also magnetic dipole (1+) responses. It is pointed out that the tensor force has a larger effect on the magnetic dipole states than on the natural parity states 2+ and 3-, especially at the mean-field level. Perspectives for a better assessment of the tensor force parameters are discussed.
Settore FIS/04 - Fisica Nucleare e Subnucleare
9-dic-2009
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/71958
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