Abstract
The β decay of neutron-rich In129 into Sn129 was studied using the GRIFFIN spectrometer at the ISAC facility at TRIUMF. The study observed the half-lives of the ground state and each of the β-decaying isomers. The level scheme of Sn129 has been expanded with thirty-one new γ-ray transitions and nine new excited levels, leading to a reevaluation of the β branching ratios and level spin assignments. The observation of the β decay of the (29/2+) 1911-keV isomeric state in In129 is reported for the first time, with a branching ratio of 2.0(5)%.
Original language | English (US) |
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Article number | 024310 |
Journal | Physical Review C |
Volume | 103 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2021 |
Funding
The authors would like to thank the GRSI collaboration at TRIUMF for their aid during the course of this work. This work was supported, in part, by the Natural Sciences and Engineering Research Council of Canada (NSERC). Phase I of the GRIFFIN spectrometer was funded by the Canadian Foundation of Innovation (CFI), TRIUMF, and the University of Guelph. TRIUMF receives funding from the Canadian Federal Government via a contribution agreement with the National Research Council Canada (NRC). C.E.S. acknowledges support from the Canada Research Chairs program.
ASJC Scopus subject areas
- Nuclear and High Energy Physics