The Nuclear Spin Scissors Mode—Theory and Experiment

Nuclear spin scissors mode – experimental status

“…The best agreement is obtained when one attributes to the scissors mode all 1 + excitations observed in the energy interval 0 < E < 4 Mev (excluding separate levels in some nuclei). It turns out also that the results of our calculations [16] are in very good agreement with the sum rule derived in [13].…”

Study of dipole excitations in even-even 156-166Dy with QRPA using the Gogny force

“…The excitation takes clearly place at the surface of the nucleus. In this energy range, below and up 3 MeV, excited states have been associated with new scissors modes [44,45]. In the classification of this recent work, three types are distinguished, an isovector spin-scalar (conventional mode), isoscalar spin-vector and isovector spin-vector.…”