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Effect of core polarization on magnetic dipole moments in deformed odd-mass nuclei

hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorBONNEAU, L.
dc.contributor.authorMINKOV, N.
hal.structure.identifierHaute Ecole Spécialisée de Suisse Occidentale [HES-SO]
dc.contributor.authorDUC, Dao Duy
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorQUENTIN, P.
hal.structure.identifierInstitut Pluridisciplinaire Hubert Curien [IPHC]
dc.contributor.authorBARTEL, J.
dc.date.issued2015-05-11
dc.identifier.issn2469-9985
dc.description.abstractEnMagnetic properties of deformed odd-mass nuclei are studied within a nonrelativistic mean-field-plus-pairing approach, namely the Skyrme-Hartree-Fock-BCS approach with self-consistent blocking. For an odd number of nucleons these approaches lead to the breaking of the time-reversal invariance. The deviation from the Schmidt values of the isoscalar magnetic dipole moment is known to result from a subtle balance between core-polarization effects and meson-exchange current effects. However, the former are usually calculated in the random phase approximation without time-reversal symmetry breaking at the mean-field level. In this work we show that if one takes into account this symmetry breaking already in the mean-field solution, the correction from core polarization yields a significant contribution to the empirical quenching of the spin gyromagnetic ratios as compared to the free values in deformed odd-mass nuclei. Moreover, we calculate magnetic dipole moments in the Bohr and Mottelson unified-model description with self-consistent blocked mean-field intrinsic states. The obtained results in the A∼100 and A∼180 mass regions as well as for three actinide nuclei compare favorably with experimental data.
dc.language.isoen
dc.publisherAmerican Physical Society
dc.title.enEffect of core polarization on magnetic dipole moments in deformed odd-mass nuclei
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevC.91.054307
dc.subject.halPhysique [physics]/Physique Nucléaire Théorique [nucl-th]
bordeaux.journalPhysical Review C
bordeaux.page054307
bordeaux.volume91
bordeaux.peerReviewedoui
hal.identifierin2p3-01285796
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//in2p3-01285796v1
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