Physics beyond the standard model probed by neutrinos
| Project/Area Number |
24540281
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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 | Tokyo Metropolitan University |
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Principal Investigator |
YASUDA Osamu 首都大学東京, 理工学研究科, 教授 (50183116)
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| Research Collaborator |
FUKASAWA Shinya
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | ニュートリノ振動 / 標準模型を越える物理 / フレーバー混合 / 非標準的相互作用 / ニュートリノ質量 / ニュートリノの質量 / 非断熱的遷移 / 長基線ニュートリノ実験 / ＣＰ非保存 |
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| Outline of Final Research Achievements |
We discussed the possibility of resolving degeneracy of the mass hierarchy in the near future long baseline experiments such as the phase 2 T2K and Nova experiments. We extended the Kimura-Takamura-Yokomakura formulation, which was developed to obtain the analytic expression for the neutrino oscillation probability in the case with constant matter density, to the case where the matter density varies nonadiabatically and oscillations are averaged over. We discussed the constraint from the Superkamiokande atmospheric neutrino data on the nonstandard scenario of sterile neutrinos, which feel matter effect much larger than the standard case. We discussed the constraint from the Superkamiokande atmospheric neutrino data on and the sensitivity of the future Hyperkamiokande atmospheric neutrino experiment to the electron and tau components of the nonstandard interaction in the neutrino propagation, assuming the knwon constraint from the high energy atmospheric neutrino data.
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Report
(4 results)
Research Products
(24 results)
