학술논문
INTERPLAY BETWEEN PARTICLE AND CORE EXCITATIONS IN 133 Sb.
Document Type
Article
Author
Source
Subject
*PROTON decay
*TIN isotopes
*EXCITATION energy (In situ microanalysis)
*SCINTILLATORS
*EXCITED states
*COLD neutrons
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Language
ISSN
0587-4254
Abstract
The γ decay of the one-proton valence nucleus 133Sb is studied using the cold-neutron induced fission of 235U and 241Pu targets. The experiment is performed at the ILL reactor in Grenoble, using a highly efficient HPGe array, also coupled to fast LaBr3(Ce) scintillators. High-spin excited states above the 16.6 μs isomer are observed, and the lifetime of the 13/2+ and 15/2+ states is measured by fast-timing techniques, revealing a complex nature of the wave functions. The experimental results are well-interpreted by a newly developed microscopic model which takes into account the coupling between the valence proton and excitations (both collective and noncollective) of the doubly magic 132Sn core. [ABSTRACT FROM AUTHOR]