Supernova Nucleosynthesis, Radioactive Nuclear Reactions and Neutrino-Mass Hierarchy

Xingqun Yao; Motohiko Kusakabe; Toshitaka Kajino; Silvio Cherubini; Seiya Hayakawa; Hidetoshi Yamaguchi

doi:10.1051/epjconf/202226001007

Supernova Nucleosynthesis, Radioactive Nuclear Reactions and Neutrino-Mass Hierarchy

Xingqun Yao^*
, Motohiko Kusakabe
, Toshitaka Kajino
, Silvio Cherubini
, Seiya Hayakawa
, Hidetoshi Yamaguchi

^*Corresponding author for this work

School of Physics

Beihang University
National Astronomical Observatory of Japan
The University of Tokyo
University of Catania

Research output: Contribution to conference › Paper › peer-review

3 Scopus citations

Abstract

The ν-process nucleosynthesis in core-collapse supernovae is a sensitive probe of unknown neutrino mass hierarchy through the MSW effect. We carefully studied the uncertainties of almost one hundred ν-induced and nuclear reactions associated with the nucleosynthesis and found that the ν-¹⁶O and ¹¹C(α,p)¹⁴N reactions among them have the biggest effect on the final ⁷Li/¹¹B isotopic abundance ratio. The neutrino mass hierarchy is constrained in our nucleosynthetic method with measured ⁷Li/¹¹B value in SiC-X presolar grains. The inverted hierarchy is statistically more favored at the 2-σ C.L. [1].

Original language	English
DOIs	https://doi.org/10.1051/epjconf/202226001007
State	Published - 24 Feb 2022
Event	16th Symposium on Nuclei in the Cosmos, NIC-XVI 2021 - Chengdu, China Duration: 21 Sep 2021 → 25 Sep 2021

Conference

Conference	16th Symposium on Nuclei in the Cosmos, NIC-XVI 2021
Country/Territory	China
City	Chengdu
Period	21/09/21 → 25/09/21

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10.1051/epjconf/202226001007

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abstract = "The ν-process nucleosynthesis in core-collapse supernovae is a sensitive probe of unknown neutrino mass hierarchy through the MSW effect. We carefully studied the uncertainties of almost one hundred ν-induced and nuclear reactions associated with the nucleosynthesis and found that the ν-16O and 11C(α,p)14N reactions among them have the biggest effect on the final 7Li/11B isotopic abundance ratio. The neutrino mass hierarchy is constrained in our nucleosynthetic method with measured 7Li/11B value in SiC-X presolar grains. The inverted hierarchy is statistically more favored at the 2-σ C.L. [1].",

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AU - Yao, Xingqun

AU - Kusakabe, Motohiko

AU - Kajino, Toshitaka

AU - Cherubini, Silvio

AU - Hayakawa, Seiya

AU - Yamaguchi, Hidetoshi

N1 - Publisher Copyright: © The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).

PY - 2022/2/24

Y1 - 2022/2/24

N2 - The ν-process nucleosynthesis in core-collapse supernovae is a sensitive probe of unknown neutrino mass hierarchy through the MSW effect. We carefully studied the uncertainties of almost one hundred ν-induced and nuclear reactions associated with the nucleosynthesis and found that the ν-16O and 11C(α,p)14N reactions among them have the biggest effect on the final 7Li/11B isotopic abundance ratio. The neutrino mass hierarchy is constrained in our nucleosynthetic method with measured 7Li/11B value in SiC-X presolar grains. The inverted hierarchy is statistically more favored at the 2-σ C.L. [1].

AB - The ν-process nucleosynthesis in core-collapse supernovae is a sensitive probe of unknown neutrino mass hierarchy through the MSW effect. We carefully studied the uncertainties of almost one hundred ν-induced and nuclear reactions associated with the nucleosynthesis and found that the ν-16O and 11C(α,p)14N reactions among them have the biggest effect on the final 7Li/11B isotopic abundance ratio. The neutrino mass hierarchy is constrained in our nucleosynthetic method with measured 7Li/11B value in SiC-X presolar grains. The inverted hierarchy is statistically more favored at the 2-σ C.L. [1].

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DO - 10.1051/epjconf/202226001007

M3 - 论文

AN - SCOPUS:85171331073

T2 - 16th Symposium on Nuclei in the Cosmos, NIC-XVI 2021

Y2 - 21 September 2021 through 25 September 2021

ER -

Supernova Nucleosynthesis, Radioactive Nuclear Reactions and Neutrino-Mass Hierarchy

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