Abstract
The quadrupole transition rate for the transition of was determined from an application of the recoil distance method with the Gamma-Ray Energy Tracking In-beam Nuclear Array (GRETINA). The present result of the was found to be , which is about three times smaller than the literature value, indicating substantially less collectivity than previously believed. Shell model calculations performed with the GXPF1A effective interaction agree with the present data and the validity of the standard effective charges in understanding collectivity in the nickel isotopes is discussed.
- Received 26 May 2016
DOI:https://doi.org/10.1103/PhysRevC.94.024340
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