A new scissors mode on the skin of deformed neutron rich nuclei

Details A new scissors mode on the skin of deformed neutron rich nuclei A new scissors mode on the skin of deformed neutron rich nuclei

2009-12-04

arxiv.org/abs/0912.0908v1

Physics

Nuclear Physics

Nuclear Theory

4 pages,4 figures

Scientific paper

Covariant density functional theory is used to analyze the evolution of low-lying M1 strength in superfluid deformed nuclei in the framework of the self-consistent Relativistic Quasiparticle Random Phase Approximation (RQRPA). In nuclei with a pronounced neutron excess two scissor modes are found. Besides the conventional scissor mode, where the deformed proton and neutron distributions oscillate against each other, a new soft M1 mode is found, where the deformed neutron skin oscillates in a scissor like motion against a deformed proton-neutron core.

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