N=90 region: The decays of Eu152m,g to Sm152

W. D. Kulp, J. L. Wood, J. M. Allmond, J. Eimer, D. Furse, K. S. Krane, J. Loats, P. Schmelzenbach, C. J. Stapels, R. M. Larimer, E. B. Norman, A. Piechaczek

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Abstract

The decays of Eu152m,g→Sm152 have been studied by γ-ray spectroscopy using the 8π spectrometer, an array of 20 Compton-suppressed Ge detectors. Very weak γ-decay branches in Sm152 were investigated through γ-γ coincidence spectroscopy. All possible E2 transitions between states below 1550 keV with transition energies >130 keV are observed, including the previously unobserved 23+→02+ 401 keV transition. The results, combined with existing lifetime data, provide a number of new or revised E2 transition strengths which are critical for clarifying the collective structure of Sm152 and the N=90 isotones.

Original languageEnglish
Article number034319
JournalPhysical Review C - Nuclear Physics
Volume76
Issue number3
DOIs
StatePublished - Sep 21 2007
Externally publishedYes

Funding

FundersFunder number
Directorate for Mathematical and Physical Sciences0137451

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