Abstract
Three sets of chiral doublet band structures have been identified in the nucleus. The properties of the observed chiral doublet bands are in good agreement with theoretical results obtained using constrained covariant density functional theory and particle rotor model calculations. Two of them belong to an identical configuration and provide the first experimental evidence for a novel type of multiple chiral doublets, where an “excited” chiral doublet of a configuration is seen together with the “yrast” one. This observation shows that the chiral geometry in nuclei can be robust against the increase of the intrinsic excitation energy.
- Received 23 April 2014
DOI:https://doi.org/10.1103/PhysRevLett.113.032501
© 2014 American Physical Society