Decay spectroscopy of 129Cd

Y. Saito*, I. Dillmann, R. Krücken, N. Bernier, G. C. Ball, M. Bowry, C. Andreoiu, H. Bidaman, V. Bildstein, P. Boubel, C. Burbadge, R. Caballero-Folch, M. R. Dunlop, R. Dunlop, L. J. Evitts, F. H. Garcia, A. B. Garnsworthy, P. E. Garrett, H. Grawe, G. HackmanS. Hallam, J. Henderson, S. Ilyushkin, A. Jungclaus, D. Kisliuk, J. Lassen, R. Li, E. MacConnachie, A. D. MacLean, E. McGee, M. Moukaddam, B. Olaizola, E. Padilla-Rodal, J. Park, O. Paetkau, C. M. Petrache, J. L. Pore, A. J. Radich, P. Ruotsalainen, J. Smallcombe, J. K. Smith, C. E. Svensson, A. Teigelhöfer, J. Turko, T. Zidar

*Corresponding author for this work

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Abstract

Excited states of 129In populated following the β decay of 129Cd 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 129Cd was extracted using the Ion Guide Laser Ion Source (IG-LIS).
β and γ rays following the decay of 129Cd were detected with the GRIFFIN spectrometer comprising the plastic scintillator SCEPTAR and 16 high-purity germanium (HPGe) clover-type detectors. From the ß−γ−γ coincidence analysis, 32 new transitions and seven new excited states were established, expanding the previously known level scheme of 129In. The log ft values deduced from the
β -feeding intensities suggest that some of the high-lying states were populated by the ν0g7/2→π0g9/2 allowed Gamow-Teller (GT) transition, which indicates that the allowed GT transition is more dominant in the 129Cd decay than previously reported. Observation of fragmented Gamow-Teller strengths is consistent with theoretical calculations.
Original languageEnglish
Article number024337
Number of pages13
JournalPhysical Review C
Volume102
Issue number2
DOIs
Publication statusPublished - 31 Aug 2020
Externally publishedYes

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