Variational calculation for the nuclear equation of state toward supernova explosions

Masatoshi Takano, Hiroaki Kanzawa, Kazuhiro Oyamatsu, Kohsuke Sumiyoshi

    Research output: Contribution to journalArticle

    Abstract

    The equation of state (EOS) is calculated for uniform nuclear matter at zero and finite temperatures with the variational method. Making use of uncertainty of the three-body nuclear force, adjustable parameters in the nuclear EOS are tuned so that the Thomas-Fermi calculations for β-stable nuclei with the EOS reproduce the empirical data. The calculated nuclear properties imply that larger symmetry energy of the EOS is preferable to reproduce the empirical β-stability line. The expectation value of the nuclear Hamiltonian caused by the 2π-exchange three-body nuclear force is uncertain and related to the symmetry energy.

    Original languageEnglish
    Pages (from-to)2455-2458
    Number of pages4
    JournalModern Physics Letters A
    Volume23
    Issue number27-30
    Publication statusPublished - 2008 Sep 30

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    Keywords

    • Nuclear EOS
    • Nuclear matter
    • Symmetry energy

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Nuclear and High Energy Physics

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