| Co-Investigator(Kenkyū-buntansha) |
仁木 秀明 大阪大学, 核物理研究センター, 協同研究員 (00135758)
小川 泉 福井大学, 学術研究院工学系部門, 教授 (20294142)
時田 茂樹 京都大学, 化学研究所, 教授 (20456825)
宮永 憲明 公益財団法人レーザー技術総合研究所, 研究部, 特別研究員1 (80135756)
黒澤 俊介 東北大学, 未来科学技術共同研究センター, 特任准教授 (80613637)
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| Budget Amount *help |
¥134,160,000 (Direct Cost: ¥103,200,000、Indirect Cost: ¥30,960,000)
Fiscal Year 2023: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
Fiscal Year 2022: ¥23,530,000 (Direct Cost: ¥18,100,000、Indirect Cost: ¥5,430,000)
Fiscal Year 2021: ¥23,530,000 (Direct Cost: ¥18,100,000、Indirect Cost: ¥5,430,000)
Fiscal Year 2020: ¥36,920,000 (Direct Cost: ¥28,400,000、Indirect Cost: ¥8,520,000)
Fiscal Year 2019: ¥33,930,000 (Direct Cost: ¥26,100,000、Indirect Cost: ¥7,830,000)
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| Outline of Final Research Achievements |
Explaining the mysteries of the current matter-dominated universe requires the baryon asymmetry. In the leptogenesis scenario, the baryon asymmetry problem is explained by the lepton number nonconservation. The study of neutrino-less double beta decay is an important research theme in fundamental physics to verify the Majorana nature of neutrinos corresponding to the lepton number nonconservation.
In this project, we have measured double beta decay of 48Ca isotopes and developed techniques for the next generation detector system of the double beta decay in order to verify the Majorana nature of neutrinos. In order to dramatically improve the sensitivity of this next-generation measurement system, we developed a CaF2 scintillating bolometer and 48Ca enrichment technique.
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