Three-body resonant states in the 9Be nucleus
| Project/Area Number |
25400241
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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 | Hokkaido University |
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Principal Investigator |
KATO KIYOSHI 北海道大学, 理学研究院, 名誉教授 (20109416)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| 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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| Keywords | 9Be光分解反応 / α+α+n クラスター模型 / 複素座標スケーリング法 / 多体共鳴状態 / 仮想状態 / クラスターダイポール共鳴 / クラスター・ダイポール共鳴 / α+α+nクラスター模型 / 9Be 第1励起状態 / 元素合成反応 / 3体共鳴状態 / 光分解反応断面積 / 散乱位相 / E1遷移強度 / 元素合成 / Be反射材 |
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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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Report
(5 results)
Research Products
(38 results)
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[Presentation] Virtual States in 9Be2016
Author(s)
Kiyoshi Kato, Yuma Kikuchi, Myagmarjav Odsuren, Takayuki Myo, Victor S. Vasilevsky and Nurgali Takibayev
Organizer
Workshop on Nuclear Cluster Physics (WNCP2016)
Place of Presentation
KGU Kannami Media Center (神奈川県・横浜市)
Year and Date
2016-11-14
Related Report
Int'l Joint Research
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[Book] Neutron Stars: Physics, Properties and Dynamics2017
Author(s)
Nurgali Takibayev, Kuantay Boshkayev (編集)； Jorge A. Rueda, Remo Ruffini, Kuantay Boshkayev, Hernando Quevedo, N. Takibayev, A. Yemilov, K. Kato, V.S. Vasilevsky, Roman Ya. Kezerashvili
Total Pages
274
Publisher
Nova Science Publishers、Inc. New York, USA
Related Report
