Decay spectroscopy of 50Sc and 50mSc to 50Ti

M. Bowry*, C.E. Jones, A.B. Garnsworthy, G.C. Ball, S. Cruz, S. Georges, G. Hackman, J.D. Holt, J. Measures, B. Olaizola, H.P. Patel, C.J. Pearson, C.E. Svensson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The β decay of the isomeric and ground state of 50Sc to the semi-magic nucleus 5022Ti28 has been studied using a 50Ca beam delivered to the GRIFFIN γ-ray spectrometer at the TRIUMF-ISAC facility. β-decay branching ratios are reported to 16 excited states with a total of 38 γ-ray transitions linking them. These new data significantly expand the information available over previous studies. Relative intensities are measured to less than 0.001% that of the strongest transition with the majority of γ-ray transitions observed here in β decay for the first time. The data are compared to shell-model calculations utilizing both phenomenologically-derived interactions employed in the pf shell as well as a state-of-the-art, ab initio based interaction built in the valence-space in-medium similarity renormalization group framework.
Original languageEnglish
Article number024314
JournalPhysical Review C
Volume104
Issue number2
Early online date9 Aug 2021
DOIs
Publication statusPublished - 31 Aug 2021
Externally publishedYes

Keywords

  • gamma spectroscopy
  • nuclear structure
  • Ab initio

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