Shears Effect with PAC Core Rotation for Dipole Bands in 142Gd and 130,132La

摘要

Experimental B(M1) and B(E2) values as well as level energy structures of dipole bands in ¹⁴²Gd and ^130,132La are compared with calculations in the framework of SPAC (Shears mechanism with Principal Axis Cranking) model. All observed dipole bands in these nuclei can indeed be considered as magnetic rotational bands with different planar symmetries and remarkable contribution of collectivity.