Nucleosynthesis in Supernovae and Neutrino Oscillation(Current Topics)
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- Suzuki Toshio
- 日本大学文理学部物理学科
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- Yoshida Takashi
- 東京大学大学院理学系研究科天文学教室
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- Chiba Satoshi
- 日本原子力研究開発機構先端基礎研究センター
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- Kajino Toshitaka
- 国立天文台理論研究部:東京大学大学院理学系研究科天文学専攻
Bibliographic Information
- Other Title
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- 超新星での元素合成とニュートリノ振動(最近の研究から)
- 超新星での元素合成とニュートリノ振動
- チョウシンセイ デ ノ ゲンソ ゴウセイ ト ニュートリノ シンドウ
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Abstract
Neutrino-nucleus reaction processes play important roles in synthesis of ^7Li, ^<11>B,^<138>La, ^<180>Ta and other elements in explosive environments realized in supernovae. We have constructed new shell model Hamiltonians based on recent progress of physics in unstable nuclei near the neutron drip-line. The spin responses of nuclei are found to be remarkably improved by the new Hamiltonians. We then applied these Hamiltonians to calculate the neutrino-nucleus reaction cross sections, and obtained more precise and reliable theoretical estimate of supernova nucleosynthesis of ^7Li, ^<11>B, etc. including the neutrino processes. Finally we propose a new method to determine unknown neutrino oscillation parameters, namely the mixing angle θ_<13> and the mass hierarchy, by making use of strong dependence of the yields of ^7Li and <11>B on these parameters.
Journal
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- Butsuri
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Butsuri 67 (1), 49-54, 2012-01-05
The Physical Society of Japan
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Details
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- CRID
- 1390282752347935104
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- NII Article ID
- 110008898006
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- NII Book ID
- AN00196952
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- ISSN
- 24238872
- 00290181
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- NDL BIB ID
- 023360260
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed