학술논문
Spectroscopic studies of neutron-rich $^{129}$In and its $\beta$-decay daughter, $^{129}$Sn, using the GRIFFIN spectrometer
Document Type
Working Paper
Author
Garcia, F. H.; Andreoiu, C.; Ball, G. C.; Bernier, N.; Bidaman, H.; Bildstein, V.; Bowry, M.; Cross, D. S.; Dunlop, M. R.; Dunlop, R.; Garnsworthy, A. B.; Garrett, P. E.; Henderson, J.; Measures, J.; Olaizola, B.; Ortner, K.; Park, J.; Petrache, C. M.; Pore, J. L.; Raymond, K.; Smith, J. K.; Southall, D.; Svensson, C. E.; Ticu, M.; Turko, J.; Whitmore, K.; Zidar, T.
Source
Phys. Rev. C 103, 024310 (2021)
Subject
Language
Abstract
The $\beta$-decay of neutron-rich $^{129}$In into $^{129}$Sn 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 $\beta$-decaying isomers. The level scheme of $^{129}$Sn has been expanded with thirty-one new $\gamma$-ray transitions and nine new excited levels, leading to a re-evaluation of the $\beta$-branching ratios and level spin assignments. The observation of the $\beta$-decay of the (29/2$^{+}$) 1911-keV isomeric state in $^{129}$In is reported for the first time, with a branching ratio of 2.0(5)$\%$.