2011 Fiscal Year Final Research Report
Isotope separation in supernova nucleosynthesis and the studies of neutrino oscillation
| Project/Area Number |
20244035
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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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 | National Astronomical Observatory of Japan |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NOMOTO Kenichi 東京大学, 数物連携宇宙研究機構, 特任教授 (90110676)
AOKI Wako 国立天文台, 光赤外研究部, 助教 (20321581)
HAYAKAWA Takehito 日本原子力研究開発機構, 量子ビーム応用研究部, 研究主幹 (70343944)
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| Project Period (FY) |
2008 – 2011
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| Keywords | 超新星 / 元素合成 / アイソトープ / ニュートリノ / 物質振動効果 |
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| Research Abstract |
We studied the supernova nucleosynthesis by bringing interdisciplinary expertise on element genesis from astronomy, astrophysics and nuclear physics. We found that the inverted neutrino mass hierarchy, which is one of the fundamental questions in particle physics and cosmology, is preferred statistically by taking account of the recent discovery of 13-mixing angle. We also made several progress in quantum mechanical calculations of unmeasured neutrino-nucleus interaction cross sections, new model construction of the supernovae and gamma-ray bursts, new proposal of nuclear cosmic-clock, identification of the origin of the p-elements which was a long-standing unresolved problem since 1957, etc.
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[Journal Article] First Observation of L^^7i/L^^6i Isotopic Ratio in the Interstellar Media beyond the Solar Neighborhood2009
Author(s)
S. Kawanomoto, T. K. Suzuki, T. Kajino, H. Ando, M. Bessell, K. Noguchi, W. Aoki, S. Honda, H. Izumiura, E. Kambe, K. Okita, K. Sadakane, B. Sato, A. Tajitsu, M. Takada-Hidai, W. Tanaka1, E. Watanabe, M. Yoshida
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Journal Title
Astrophysical Journal
Volume: 701
Pages: 1506-1518
DOI
Peer Reviewed
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