Abstract
A record number of nuclei was detected and new isotopic species toward the proton dripline were discovered at the RIKEN Nishina Center. Decay spectroscopy was performed with the high-efficiency detector arrays WAS3ABi and EURICA. Both the half-life and the -decay end point energy of were measured more precisely than the literature values. The value and the uncertainty of the resulting strength for the pure Gamow-Teller decay was improved to . A discrimination between different model calculations was possible for the first time, and the level scheme of is investigated further.
- Received 18 February 2019
- Revised 11 April 2019
DOI:https://doi.org/10.1103/PhysRevLett.122.222502
© 2019 American Physical Society