Study of low-energy electric dipole transitions by linearly polarized photons
| Project/Area Number |
25400303
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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 | National Institutes for Quantum and Radiological Science and Technology (2016)
Japan Atomic Energy Agency (2013-2015) |
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Principal Investigator |
Shizuma Toshiyuki 国立研究開発法人量子科学技術研究開発機構, 高崎量子応用研究所 東海量子ビーム応用研究センター, 上席研究員(定常) (50282299)
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| Co-Investigator(Kenkyū-buntansha) |
湊 太志 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 原子力基礎工学研究センター, 研究職 (00554065)
宮本 修治 兵庫県立大学, 高度産業科学技術研究所, 教授 (90135757)
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| Co-Investigator(Renkei-kenkyūsha) |
HAYAKAWA Takehito 量子科学技術研究開発機構, 高崎量子応用研究所・東海量子ビーム応用研究センター, 上席研究員 (70343944)
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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 |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 原子核構造 / 電気双極子遷移強度 / 核共鳴蛍光散乱 / レーザーコンプトンガンマ線 / 双極子遷移強度 / レーザーコンプトンンガンマ線 |
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| Outline of Final Research Achievements |
Nuclear resonance fluorescence measurements using laser Compton scattering gamma rays have been carried out at the NewSUBARU synchrotron radiation facility at University of Hyogo. We have obtained the dipole strength distribution of Cr-52 and Pb-207 nuclei from the measurements of intensities of scattering gamma rays and angular distribution relative to the polarization of the incident gamma rays. Furthermore, random phase approximation model calculations were carried out. As a result, we found that the configuration mixing due to the 2 particle 2 hole excitation and the tensor force are important for the residual interaction to reproduce the dipole strength distribution in Cr-52. We also found that the increase of the electric dipole strength correlates with the thickness of the neutron skin induced by the peripheral nucleon orbital of 3p1/2 in Pb-207.
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Report
(5 results)
Research Products
(15 results)
