Measurement of particle-antiparticle symmetry breaking in neutrinos and R&D for the future
Project/Area Number |
23340056
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
|
Research Institution | The University of Tokyo |
Principal Investigator |
|
Co-Investigator(Kenkyū-buntansha) |
HAYATO Yoshinari 東京大学, 宇宙線研究所, 准教授 (60321535)
|
Co-Investigator(Renkei-kenkyūsha) |
MIURA Makoto 東京大学, 宇宙線研究所, 助教 (10272519)
NAKAYAMA Shoei 東京大学, 宇宙線研究所, 特任助教 (70401289)
|
Project Period (FY) |
2011-04-01 – 2014-03-31
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥14,430,000 (Direct Cost: ¥11,100,000、Indirect Cost: ¥3,330,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2011: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
|
Keywords | ニュートリノ / CP対称性 / CPT対称性 / スーパーカミオカンデ / 大気ニュートリノ / ニュートリノ振動 / 対称性の破れ |
Research Abstract |
This research aimed to understand more about the three flavor framework of lepton particles by experimental tests of particle-antiparticle symmetry violation in neutrinos. We have looked for possible difference between neutrino oscillations and antineutrino oscillations in the atmospheric neutrino data by world largest neutrino oscillation detector Super-Kamiokande. We tested two hypotheses - CP and CPT symmetry violation - and found no evidence of symmetry violation and concluded that both CP and CPT symmetries are conserved within the experimental errors.
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Report
(4 results)
Research Products
(25 results)