Abstract
The structures of the neutron-rich isotopes were investigated via knockout reactions at the Radioactive Isotope Beam Factory, RIKEN. Isotopes of interest were studied using the DALI2 -ray detector array combined with the MINOS target and tracker system. Level schemes were reconstructed using the coincidence technique, with tentative spin-parity assignments based on the measured inclusive and exclusive cross sections. Comparison with shell-model calculations using the Lenzi-Nowacki-Poves-Sieja LNPS and PFSDG-U interactions suggests coexistence of spherical and deformed shapes at low excitation energies in the isotopes. The distorted-wave impulse approximation (DWIA) framework was used to calculate the single-particle cross sections. These values were compared with the experimental findings.
- Received 20 September 2019
- Revised 21 February 2020
- Accepted 6 March 2020
DOI:https://doi.org/10.1103/PhysRevC.101.034314
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