| Project/Area Number |
26400283
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Kanto Gakuin University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
FUNAKI YASURO 関東学院大学, 理工学部, 准教授 (00435679)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | クラスターガス状態 / アルファ凝縮状態 / ホイル状態 / ホイル類似状態 / モノポール遷移 / C0遷移強度 / ハイパー核 / 原子核クラスター / 希薄アルファ凝縮状態 / モノポール遷移強度 / ハイパー原子核 / テンソル最適化フェルミ球法（TOFS） / テンソル最適化フェルミ球（TOFS）理論 / クラスターガス的状態 / 単極子遷移強度 / クラスターガス的構造 |
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| Outline of Final Research Achievements |
The basic purpose of the present project was to disclose the novel properties of the cluster-gas-like states in light nuclei. The typical one is the Hoyle state of 12C (2nd 0+) with an alpha+alpha+alpha gas-like structure. We have focused on studying the structures of 13C and 13-Lambda-Carbon with alpha+alpha+alpha+n and alpha+alpha+alpha+Lambda models, respectively, together with the related topics. It was confirmed that the cluster-gas-like states exist in both 13C and 13-Lambda-Carbon. In the hypernucleus a“(5-Lambda-He)+alpha+alpha”gas-like state (1/2+) appears just below its threshold, where the Lambda particle is bound to one of the three alphas. On the other hand, a “alpha+alpha+alpha+n”gas-like state (1/2+) comes out around its threshold in 13C. In addition, the C0 (longitudinal electric monopole) transition strengths in 13C, which is a longstanding problem in 13C, was resolved by taking into account cluster degree of freedom in the relevant 1/2- states.
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