2013 Fiscal Year Final Research Report
Effects of supernova neutrino self-interaction on supernova nucleosynthesis and neutrino observations
| Project/Area Number |
23540287
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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 | Kyoto University (2013)
The University of Tokyo (2011-2012) |
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Principal Investigator |
YOSHIDA Takashi 京都大学, 基礎物理学研究所, 特定研究員 (80374891)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKAMURA Akira 豊田工業高等専門学校, 一般学科, 教授 (90332030)
UMEDA Hideyuki 東京大学, 大学院・理学系研究科, 准教授 (60447357)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 超新星 / ニュートリノ / 元素合成 / 大質量星 |
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| Research Abstract |
We extended a nuclear reaction network for r-process and nup-process. Then, we investigated the influence of r-process on beta-decay rates and nup-process in neutrino-driven winds on a proto-neutron star. We developed the code for neutrino-flavor evolution of supernova neutrinos taking into account neutrino self-interactions with single-angle approximation. However, we have not taken into account multi-angle effect. Thus, we would like to include the effect in the next step. We calculated the neutrino nucleosynthesis of fluorine in supernovae and applied to galactic chemical evolution. We clarified the 56Ni production in energetic core-collapse supernovae evolved from very massive stars.
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