Abstract
The solution of TDHFB equations by Wigner Function Moments method with the isovectorisoscalar coupling taken into account leads to the prediction of the new type of nuclear spin scissors mode. It turns out that the lower group of M1 excitations in 164Dy, which is usually not included in the systematics of the scissors mode, can be quite naturally attributed to this new type of scissors.
Highlights
IntroductionThe nuclear scissors mode (rotational oscillations of protons with respect of neutrons in deformed nuclei) was predicted by R
The nuclear scissors mode was predicted by R
It will be shown that experimentalists are only partly right, because these two groups of 1+ states represent two different kinds of scissors. We describe this phenomenon by the Wigner Function Moments (WFM) method
Summary
The nuclear scissors mode (rotational oscillations of protons with respect of neutrons in deformed nuclei) was predicted by R. In the rare earth nuclei it is represented by the group of 1+ excitations in the energy region 1 < E < 4 MeV. The spectrum of its low lying 1+ excitations consists, roughly speaking, of two well separated groups of levels. Experimentalists don’t attribute to the scissors mode the lower group taking into account only the higher one, otherwise the result deviates very much from the rare earth systematics. It will be shown that experimentalists are only partly right, because these two groups of 1+ states represent two different kinds of scissors. We describe this phenomenon by the Wigner Function Moments (WFM) method
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