First observation of high-spin states in Se83

N. Fotiades, A. F. Lisetskiy, J. A. Cizewski, R. Krücken, R. M. Clark, P. Fallon, I. Y. Lee, A. O. Macchiavelli, J. A. Becker, B. A. Brown, M. Horoi, W. Younes

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Abstract

The level structure of Se83 was studied via prompt γ-ray spectroscopy of fragments following the fission of the compound nucleus Th226 formed in the O18 (91 MeV) + Pb208 fusion-evaporation reaction. The first four high-spin states above the 9/2+ ground state were established. The coupling of the neutron hole in the g9/2 orbital to the yrast states in the Se84 core can account for these states. The experimentally observed high-spin states are compared with predictions of shell-model calculations.

Original languageEnglish
Article number034308
JournalPhysical Review C - Nuclear Physics
Volume74
Issue number3
DOIs
StatePublished - 2006

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