Configuration mixing investigation in germanium isotopes through measurement of E0 transition strengths

C. Porzio, A. B. Garnsworthy, S. Leoni, J. Henderson, J. Smallcombe, J. K. Smith, O. Wieland, C. Andreoiu, G. C. Ball, S. S. Bhattacharjee, V. Bildstein, H. Boston, M. Bowry, A. Briscoe, R. Coleman, I. Dillmann, J. T.H. Dowie, B. Fornal, L. P. Gaffney, S. GillespieE. Gopaul, G. Hackman, J. Heery, S. Jazrawi, R. S. Lubna, A. D. MacLean, M. Martin, C. R. Natzke, S. Nittala, B. Olaizola, C. Paxman, E. E. Peters, M. Rocchini, C. E. Svensson, A. Vitéz-Sveiczer, D. Yates, S. W. Yates, T. Zidar

Research output: Contribution to journalArticlepeer-review


Experimental and theoretical studies of the germanium isotopes on the neutron-rich side of the stability valley point increasingly toward the emergence of triaxiality, configuration mixing, and shape coexistence phenomena. Studies of the E0 strengths, which can provide a direct measure of the amount of configuration mixing, are lacking. Thus, determining E0 transition strengths is essential for an understanding of the evolution of structures in the Ge isotopes. Beta-decay experiments populating excited states in the 72,74,76,78Ge isotopes were performed at the TRIUMF-ISAC radioactive beam facility. Gamma-ray and electron spectroscopic investigations have been performed, to measure E0 strengths between states of J > 0, exploiting the GRIFFIN spectrometer combined with the PACES silicon detector array. Preliminary results from this study are presented.

Original languageEnglish
Article number127
JournalNuovo Cimento della Societa Italiana di Fisica C
Issue number5
StatePublished - Sep 2022

Bibliographical note

Funding Information:
We would like to thank the operations and beam delivery staff at TRIUMF for providing the radioactive beam. The GRIFFIN infrastructure has been funded jointly by the Canada Foundation for Innovation, the British Columbia Knowledge Development Fund (BCKDF), the Ontario Ministry of Research and Innovation (ON-MRI), TRIUMF and the University of Guelph. TRIUMF receives federal funding via a contribution agreement through the National Research Council Canada (NRC). CES acknowledges support from the Canada Research Chairs program. This work was supported in part by the Natural Sciences and Engineering Research Council of Canada (NSERC) and by the Italian Institute of Nuclear Physics (INFN).

Publisher Copyright:
© 2022 Societa Italiana di Fisica. All rights reserved.

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Physics and Astronomy (miscellaneous)


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