Abstract
We report strengths for the neutron-rich and isotopes from intermediate-energy Coulomb excitation. The electric quadrupole transition strengths to the first states complete, with considerably improved uncertainties, the evolution of quadrupole collectivity in the Kr and Se isotopes approaching , for which and had previously been the most uncertain. We also report significant excitation strength to several higher-lying states in the krypton isotopes. This fragmentation of strength in confirms shell-model calculations in the shell with an only minimally tuned shell-model setup that is based on a nucleon-nucleon interaction derived from effective field theory and effective charges adjusted to .
1 More- Received 7 July 2017
DOI:https://doi.org/10.1103/PhysRevC.96.044332
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