Tilted Axis Rotation of 57Mn in Covariant Density Functional Theory**Supported by the National Natural Science Foundation of China under Grant No 11461141002, and the Open Project Program of State Key Laboratory of Theoretical Physics of Institute of Theoretical Physics of Chinese Academy of Sciences under Grant No Y4KF041CJ1.

Abstract

The self-consistent tilted axis cranking covariant density functional theory based on the point-coupling interaction is applied to investigate the tilted axis rotation in 57Mn. The observed data for band C are reproduced well with the assigned configuration config 1. The shears mechanism for magnetic rotation is examined by investigating microscopically the orientation of angular momentum and the corresponding contributions. It is found that config 1 and config 3 correspond to a rotation of high-K character. Config 2 corresponds to a rotation of magnetic character. However, due to the presence of electromagnetic transition B(M1) and B(E2), collective rotation plays an essential role in the competition with magnetic rotation.