Abstract
The neutron-deficient semimagic (neutron number ) nucleus has been produced at high spins using the projectile-target system at 125 MeV beam energy. The -decays of levels populated by the fusion evaporation reaction channel were studied using coincidences, and 20 new -ray transitions involving 15 new positive- and negative-parity states were observed. Spin and parity for many of the excited states were firmly deduced for the first time using the combined directional angular correlation and direction-polarization techniques. The observed structures are discussed within the framework of large-scale shell model calculations. transition strengths were deduced and used together with the results of the shell model calculations to study the contribution of different particle-hole configurations, in particular for analyzing contributions from core-excited configurations.
- Received 30 January 2014
DOI:https://doi.org/10.1103/PhysRevC.89.044310
©2014 American Physical Society