Accurate calculations of nuclear matrix elements for neutrinoless double beta decay
| Project/Area Number |
25400267
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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 | Chiba Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
吉永 尚孝 埼玉大学, 理工学研究科, 教授 (00192427)
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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 |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 原子核構造 / 中重核 / 殻模型 / 核子対殻模型 / 二重ベータ崩壊 / 重い原子核 / シッフモーメント / 電気双極子モーメント / 生成座標法 |
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| Outline of Final Research Achievements |
Low-lying states for even-even, odd-mass, and doubly odd nuclei around masses 80, 100 and 130 are systematically investigated using a shell model. Energy levels of the low-lying collective states for even-even isotopes are reproduced very well along with electromagnetic transitions. For odd-mass and doubly odd nuclei, complicated level schemes and electromagnetic moments are in excellent agreement with the experimental data. Using wave functions obtained in these calculations, the nuclear matrix elements for the neutrinoless double beta decay are estimated. Our calculations give a few times smaller nuclear matrix elements than those obtained by other theoretical methods.
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Report
(5 results)
Research Products
(57 results)
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[Presentation] Schiff moments of Xe isotopes2015
Author(s)
N. Yoshinaga, K. Higashiyama, and E. Teruya
Organizer
8th International Workshop on Fundamental Physics Using Atoms (FPUA2015)
Place of Presentation
理化学研究所（埼玉県和光市）
Year and Date
2015-11-30
Related Report
Invited
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[Presentation] Shell model approach for nuclei with mass around 2202014
Author(s)
Yukiko Kaiura, Naotaka Yoshinaga, and Koji Higashiyama
Organizer
Fourth Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and the Physical Society of Japan
Place of Presentation
Hilton Waikoloa Village Island of Hawaii（アメリカ）
Year and Date
2014-10-07 – 2014-10-11
Related Report
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[Presentation] Estimation of Schiff moments using the nuclear shell model2014
Author(s)
Eri Teruya, Naotaka Yoshinaga, Ryoichi Arai and Koji Higashiyama
Organizer
Fourth Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and the Physical Society of Japan
Place of Presentation
Hilton Waikoloa Village Island of Hawaii（アメリカ）
Year and Date
2014-10-07 – 2014-10-11
Related Report
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