Toroidal dipole, resonances in the relativistic random phase approximation

D. Vretenar, D. Vretenar, N. Paar, P. Ring, T. Nikšić, T. Nikšić

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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.

Original languageEnglish
Article number021301
Pages (from-to)213011-213014
Number of pages4
JournalPhysical Review C - Nuclear Physics
Issue number2
StatePublished - Feb 2002


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