| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Outline of Final Research Achievements |
Using an α+α+n three-cluster model and the complex scaling method (CSM), we investigated the characteristic properties of the 9Be nucleus which is also used as a neutron reflector in nuclear reactors. As a result, observed energy levels of 9Be can be understood as resonant states of a Borromean system which is a three-body system having no bound subsystems except for the ground state. As for the recently observed photo-disintegration cross section, the experimental data can be shown to be explained by the calculation using the CSM. The peak of cross section can be understood to be due to a 8Be+n virtual state but not a resonant state. These results have been reported in many international conferences and 13 published papers.
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