N=90 region: The decays of {152m,g}Eu to 152Sm

Details N=90 region: The decays of {152m,g}Eu to 152Sm N=90 region: The decays of {152m,g}Eu to 152Sm

2006-07-20

arxiv.org/abs/nucl-ex/0607025v4

Phys.Rev.C76:034319,2007

Physics

Nuclear Physics

Nuclear Experiment

37 pages, 8 figures, 7 tables. Discussion significantly expanded: added comparisons of nine collective models to experimental

Scientific paper

10.1103/PhysRevC.76.034319

The decays of {152m,g}Eu to 152Sm have been studied by gamma-ray spectroscopy using the 8pi Spectrometer, an array of 20 Compton-suppressed Ge detectors. Very weak gamma-decay branches in 152Sm were investigated through gamma-gamma coincidence spectroscopy. All possible E2 transitions between states below 1550 keV with transition energies > 130 keV are observed, including the previously unobserved 2^+_3 to 0^+_2 401 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 152Sm and the N=90 isotones.

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