10th Workshop on Nuclear Level Density and Gamma Strength

Splitting of the scissors resonance due to the backbending effect

Not scheduled

20m

Auditorium 1 (Helga Engs Hus)

Oral

Speaker

Fang-Qi Chen (Lanzhou University)

Description

The splitting of the scissors resonance in the actinide region is discussed within the framework of a microscopic model, in which the scissors mode is generated by angular momentum projections for neutrons and protons, respectively. It is found that the higher- and lower- component of the splited scissors resonance can be connected to the scissors mode based on neutron and proton two-quasiparticle configurations, respectively. The energy separation between the scissors modes with neutron- and proton-configurations can be connected to the backbending effect in high-spin spectroscopy, as the angular momentum alignment, which leads to the backbending phenomenon, also plays a significant role in determing the energy of the scissors resonance.