The neutrino oscillation analysis with tau neutrino appearance in a long-baseline accelerator experiment
| Project/Area Number |
25707019
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Nagoya University (2016)
Toho University (2013-2015) |
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Principal Investigator |
FUKUDA Tsutomu 名古屋大学, 高等研究院(理学研究科), YLC特任助教 (10444390)
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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 |
¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | ニュートリノ振動 / 原子核乾板 / タウニュートリノ / OPERA実験 / CERN / Appearance / J-PARC / NINJA実験 / チャーム粒子 / 素粒子実験 / 加速器 |
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| Outline of Final Research Achievements |
Total five tau neutrino events have been detected, allowing to reject the background-only hypothesis at 5.1 sigma through this research. This means that tau neutrino appearance has been discovered and the biggest goal of the OPERA experiment has been successfully achieved. Consequently, final verification for the neutrino oscillation has been completed. Then the accuracy for neutrino oscillation measurement in OPERA has been improved with new (looser) selection criteria for tau neutrino detection and reduction of the systematic error by a detailed study for the background. Furthermore, I proposed a new experimental project that aims at precise measurement of neutrino interactions with nuclear emulsion detector at J-PARC for next generation neutrino oscillation experiments. The NINJA Collaboration was newly established for this purpose with myself being a Principal Investigator (PI). We have implemented the neutrino beam exposure with water and iron target emulsion detector at J-PARC.
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Report
(5 results)
Research Products
(91 results)
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[Journal Article] Automatic track recognition for large-angle minimum ionizing particles in nuclear emulsions2014
Author(s)
T. Fukuda, S. Fukunaga, H. Ishida, T. Matsumoto, T. Matsuo, S. Mikado, S. Nishimura, S. Ogawa, H. Shibuya, J. Sudou, A. Ariga and S. Tufanli
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Journal Title
Journal of Instrumentation
Volume: 9
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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