Ground-state and pairing-vibrational bands with equal quadrupole collectivity in Xe 124

A. J. Radich, P. E. Garrett, J. M. Allmond, C. Andreoiu, G. C. Ball, L. Bianco, V. Bildstein, S. Chagnon-Lessard, D. S. Cross, G. A. Demand, A. Diaz Varela, R. Dunlop, P. Finlay, A. B. Garnsworthy, G. Hackman, B. Hadinia, B. Jigmeddorj, A. T. Laffoley, K. G. Leach, J. Michetti-WilsonJ. N. Orce, M. M. Rajabali, E. T. Rand, K. Starosta, C. S. Sumithrarachchi, C. E. Svensson, S. Triambak, Z. M. Wang, J. L. Wood, J. Wong, S. J. Williams, S. W. Yates

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Abstract

The nuclear structure of Xe124 has been investigated via measurements of the β+/EC decay of Cs124 with the 8πγ-ray spectrometer at the TRIUMF-ISAC facility. The data collected have enabled branching ratio measurements of weak, low-energy transitions from highly excited states, and the 2+→0+ in-band transitions have been observed. Combining these results with those from a previous Coulomb excitation study, B(E2;23+→02+)=78(13) W.u. and B(E2;24+→03+)=53(12) W.u. were determined. The 03+ state, in particular, is interpreted as the main fragment of the proton-pairing vibrational band identified in a previous Te122(He3,n)Xe124 measurement, and has quadrupole collectivity equal to, within uncertainty, that of the ground-state band.

Original languageEnglish
Article number044320
JournalPhysical Review C - Nuclear Physics
Volume91
Issue number4
DOIs
StatePublished - Apr 21 2015

Bibliographical note

Publisher Copyright:
© 2015 American Physical Society.

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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