Abstract
The decays of were studied with the Summing NaI(Tl) (SuN) detector at the National Superconducting Cyclotron Laboratory. The -decay feeding intensity distribution for each isotope was extracted by measuring rays in coincidence with an emitted electron. The was extracted via the total absorption spectroscopy technique. The for each nucleus was compared to predictions made by the quasiparticle random-phase approximation (QRPA) model which is commonly used to calculate -decay properties for astrophysical applications. The main goal was to provide experimental data for neutron-rich nuclei, relevant to the astrophysical process. In addition, the extracted -decay feeding intensity distributions can lead to a better understanding of nuclear structure in a region of rapid structure changes around . Finally, experimental data for are also of interest to antineutrino studies of nuclear reactors.
- Received 8 June 2020
- Accepted 16 February 2021
DOI:https://doi.org/10.1103/PhysRevC.103.035803
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