Supernova constraints on neutrino oscillation and EoS for proto-neutron star

T. Kajino, W. Aoki, M. K. Cheoun, T. Hayakawa, J. Hidaka, Y. Hirai, G. J. Mathews, K. Nakamura, S. Shibagaki, T. Suzuki

    研究成果: Conference contribution

    1 被引用数 (Scopus)

    抄録

    Core-collapse supernovae eject huge amount of flux of energetic neutrinos which affect explosive nucleosynthesis of rare isotopes like 7Li, 11B, 92Nb, 138La and Ta and r-process elements. Several isotopes depend strongly on the neutrino flavor oscillation due to the Mikheyev-Smirnov-Wolfenstein (MSW) effect. We here discuss how to determine the neutrino temperatures and propose a method to determine still unknown neutrino oscillation parameters, mass hierarchy and θ13, simultaneously. Combining the recent experimental constraints on θ13 with isotopic ratios of the light elements discovered in presolar grains from the Murchison meteorite, we show that our method suggests at a marginal preference for an inverted neutrino mass hierarchy. We also discuss supernova relic neutrinos that may indicate the softness of the equation of state (EoS) of nuclear matter as well as adiabatic conditions of the neutrino oscillation.

    本文言語English
    ホスト出版物のタイトルAIP Conference Proceedings
    出版社American Institute of Physics Inc.
    ページ319-325
    ページ数7
    1594
    ISBN(印刷版)9780735412286
    DOI
    出版ステータスPublished - 2014
    イベント12th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG 2013 - Tsukuba
    継続期間: 2013 11 182013 11 21

    Other

    Other12th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG 2013
    CityTsukuba
    Period13/11/1813/11/21

    ASJC Scopus subject areas

    • 物理学および天文学(全般)

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