Triplet structure of nuclear scissors mode

Abstract

The fine structure of the scissors mode is investigated within the Time Dependent Hartree-Fock-Bogoliubov (TDHFB) approach. The solution of TDHFB equations by the Wigner Function Moments (WFM) method predicts a splitting of the scissors mode into three intermingled branches. Together with the conventional scissors mode two new modes arise due to spin degrees of freedom. They generate significant $M1$ strength below the conventional energy range. The results of calculations of scissors resonances in Rare Earths and Actinides by WFM and QPNM methods are compared with experimental data. A remarkable coherence of both methods together with experimental data is observed.

24 pages, 11 figures

References in corpus (2)

• Verification of detailed balance for $\gamma$ absorption and emission in Dy isotopes
• Experimental status of the nuclear spin scissors mode

Cited by in corpus (2)

• Microscopic analysis of low-energy spin and orbital magnetic dipole excitations in deformed nuclei
• Microscopic analysis of dipole electric and magnetic strengths in ${}^{156}$Gd