Interplay between antimagnetic and collective rotation in Fe-58

Abstract: The self-consistent tilted axis cranking covariant density functional theory based on the point- coupling interaction PC-PK1 is applied to investigate the possible existence of antimagnetic ro- tation in the nucleus Fe-58. The observed data for Band 3 and Band 4 are reproduced well with two assigned configurations. It is found that both bands correspond to a rotation of antimagnetic character, but, due to the presence of considerable deformation, the interplay between antimag- netic rotation and collective motion plays an essential role. In particular for Band 4, collective rotation is dominant in the competition with antimagnetic rotation. Moreover, it is shown that the behavior of the ratios between the dynamic moments of inertia and the B(E2) values reflects the interplay between antimagnetic and collective rotation.