Shell and Alpha-Cluster-Like States in ^<44>Ti
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概要
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The structure of ^<44>Ti is studied in the extended model which combines the shell model with the ^<40>Ca-α cluster model for both the positive-parity and the negative-parity states. When the negative-parity shell-model bases are constructed, a special care is paid to eliminate the spurious states due to the center-of-mass excitations from them. The quasi-rotational feature of the ground band and the highly excited ^<40>Ca-α resonance states are well reproduced. The enhanced B(E2) values and the α-transfer spectroscopic factor S_α^L of the ground band and also the ^<40>Ca-α resonance states above the α-threshold are well explained in the present model. The lowest J^π=1^- state is predicted at 3.76 MeV and the α-cluster-like J^π=1^- state is predicted at 12.2 MeV in good agreement with the experiment. Calculated S_α^L for the negative-parity yrast levels are too large compared with the experiment.
- 1981-12-25
著者
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ITONAGA Kazunori
Department of Applied Mathematics, Osaka University
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Itonaga Kazunori
Department Of Applied Mathematics Faculty Of Engineering Science Osaka University
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ITONAGA Kazunori
Department of Applied Mathematics, Faculty of Engineering Science Osaka University
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