Abstract
Excited states in the neutron-rich , 36 nuclei and were populated in nucleon-removal reactions from projectiles at . The -ray transitions from such states in these Ti isotopes were detected with the advanced -ray tracking array GRETINA and were corrected event by event for large Doppler shifts () using the -ray interaction points deduced from online signal decomposition. The new data indicate that a steep decrease in quadrupole collectivity occurs when moving from neutron-rich , 38 Fe and Cr toward the Ti and Ca isotones. In fact, provide some of the most neutron-rich benchmarks accessible today for calculations attempting to determine the structure of the potentially doubly magic nucleus .
- Received 31 December 2013
DOI:https://doi.org/10.1103/PhysRevLett.112.112503
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