학술논문
Decay Spectroscopy of $^{129}$Cd
Document Type
Working Paper
Author
Saito, Y.; Dillmann, I.; Krücken, R.; Bernier, N.; Ball, G. C.; Bowry, M.; Andreoiu, C.; Bidaman, H.; Bildstein, V.; Boubel, P.; Burbadge, C.; Caballero-Folch, R.; Dunlop, M. R.; Dunlop, R.; Evitts, L. J.; Garcia, F. H.; Garnsworthy, A. B.; Garrett, P. E.; Grawe, H.; Hackman, G.; Hallam, S.; Henderson, J.; Ilyushkin, S.; Jungclaus, A.; Kisliuk, D.; Lassen, J.; Li, R.; MacConnachie, E.; MacLean, A. D.; McGee, E.; Moukaddam, M.; Olaizola, B.; Padilla-Rodal, E.; Park, J.; Paetkau, O.; Petrache, C. M.; Pore, J. L.; Radich, A. J.; Ruotsalainen, P.; Smallcombe, J.; Smith, J. K.; Svensson, C. E.; Teigelhöfer, A.; Turko, J.; Zidar, T.
Source
Phys. Rev. C 102, 024337 (2020)
Subject
Language
Abstract
Excited states of $^{129}$In populated following the $\beta$-decay of $^{129}$Cd were experimentally studied with the GRIFFIN spectrometer at the ISAC facility of TRIUMF, Canada. A 480-MeV proton beam was impinged on a uranium carbide target and $^{129}$Cd was extracted using the Ion Guide Laser Ion Source (IG-LIS). $\beta$- and $\gamma$-rays following the decay of $^{129}$Cd were detected with the GRIFFIN spectrometer comprising the plastic scintillator SCEPTAR and 16 high-purity germanium (HPGe) clover-type detectors. %, along with the $\beta$-particles were detected with SCEPTAR. From the $\beta$-$\gamma$-$\gamma$ coincidence analysis, 32 new transitions and 7 new excited states were established, expanding the previously known level scheme of $^{129}$In. The $\log ft$ values deduced from the $\beta$-feeding intensities suggest that some of the high-lying states were populated by the $\nu 0 g_{7/2} \rightarrow \pi 0 g_{9/2}$ allowed Gamow-Teller (GT) transition, which indicates that the allowed GT transition is more dominant in the $^{129}$Cd decay than previously reported. Observation of fragmented Gamow-Teller strengths is consistent with theoretical calculations.
Comment: 13 pages, 9 figures, to be published in Physical Review C
Comment: 13 pages, 9 figures, to be published in Physical Review C