Observation of the 0 + 2 state in 44 S

S. Grévy,F. Negoita,I. Stefan,N. L. Achouri, J. C. Angélique,B. Bastin, R. Borcea, A. Buta,J. M. Daugas,F. De Oliveira, O. Giarmana, C. Jollet,B. Laurent,M. Lazar,E. Liénard,F. Maréchal,J. Mrázek,D. Pantelica,Y. Penionzhkevich,S. Piétri,O. Sorlin,M. Stanoiu, C. Stodel, M. G. St-Laurent

The European Physical Journal A - Hadrons and Nuclei（2005）

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摘要

. We report preliminary results on the observation of the isomeric 0 + 2 state in 44 S. This state, populated in the fragmentation of a 48 Ca beam, is located at 1365±1 keV and has a half-life of 2.3±0.3 μs. The observation of this isomer is the first experimental evidence of shape coexistence in 44 S which was predicted by various theoretical approaches. In particular, we found a good agreement with shell model calculations.

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关键词

23.20.Lv γ transitions and level energies,23.20.Nx Internal conversion and extranuclear effects,27.40.+z 39 ⩽ A ⩽ 58

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