| Project/Area Number |
15K05112
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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 | High Energy Accelerator Research Organization |
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Principal Investigator |
ISHIHARA Nobuhiro 大学共同利用機関法人高エネルギー加速器研究機構, その他部局等, 名誉教授 (50044780)
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| Co-Investigator(Kenkyū-buntansha) |
川井 正徳 大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 技師 (50391735)
|
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| Project Period (FY) |
2015-04-01 – 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: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | マヨラナニュートリノ / 二重ベータ崩壊 / 運動量測定器 / ドリフトチェンバー / 超伝導ソレノイド磁石 / マヨラナ・ニュートリノ / シーソー機構 / レプトジェネシス理論 / 飛跡検出器 / 超伝導マグネット / レプトジェネシス |
|---|
| Outline of Final Research Achievements |
Majorana nature, which means no difference between material and anti-material, is realistically confirmed by only the experimental discovery of neutrinoless double beta decay in nuclei. This research is an R&D project to construct a large scale momentum analyzer that can measure the momentum of each beta-ray emitted from the nuclear double beta decay. The project is the only one searching for neutrinoless double beta decay by measuring a beta-ray momentum all over the world. This method can extremely reduce the backgrounds in searching for neutrinoless double beta decay events better than the energy measurement method using calorimetry.
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