Shape isomerism at N=40: Discovery of a proton intruder state in Co67
作者： D Pauwels , O Ivanov , N Bree , J Büscher , TE Cocolios
DOI: 10.1103/PHYSREVC.78.041307
关键词: Fission 、 Atomic physics 、 Proton 、 Ionization 、 Excited state 、 Nuclear structure 、 Physics 、 Intruder state 、 Uranium-238 、 Ground state
摘要: The nuclear structure of {sup 67}Co has been investigated through 67}Fe {beta} decay. isotopes were produced at the LISOL facility in proton-induced fission 238}U and selected using resonant laser ionization combined with mass separation. application a new correlation technique unambiguously revealed 496(33) ms isomeric state an unexpected low energy 492 keV. A level scheme was deduced. Proposed spin parities suggest spherical (7/2{sup -}) ground deformed first excited (1/2{sup keV, interpreted as proton 1p-2h prolate intruder state.
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