| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Research Abstract |
The generalized two-center cluster model (GTCM), which can treat covalent and atomic configurations in general two center systems, is applied to the light neutron-excess system, 12Be = . + . + 4N. The intrinsic structure of the excited energy levels is investigated. We found that, in an unbound region, the ionic structures of .+8He and 5He+7He, the atomic structure of 6He+6He are generated although the covalent structures are dominant in the bound region. An exotic superdeformation, which has a hybrid configuration of both the covalent and He-dimer structures, is also realized in the same energy region. The level scheme of these unbound states reveals a strong degenerate feature with a considerable mixture of the different configurations. The present result strongly suggests that such a degenerate feature can be generalized to general neutron-excess systems in the lighter mass region.
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