Abstract
The structures of excited states in are investigated using the antisymmetrized molecular dynamics and generator coordinate method (GCM). The GCM basis wave functions are calculated via energy variation with a constraint on the quadrupole deformation parameter . By applying the GCM after parity and angular momentum projections, the coexistence of two positive- and one negative-parity superdeformed (SD) bands are predicted, and low-lying states and other deformed bands are obtained. The SD bands have structures of + two valence neutrons in molecular orbitals around the two cores in a cluster picture. The configurations of the two valence neutrons are and for the positive-parity SD bands and for the negative-parity SD band. The structural changes of the yrast states are also discussed.
- Received 9 August 2014
- Revised 1 October 2014
DOI:https://doi.org/10.1103/PhysRevC.90.054308
©2014 American Physical Society