Variational calculation for the nuclear equation of state toward supernova explosions

Masatoshi Takano*, Hiroaki Kanzawa, Kazuhiro Oyamatsu, Kohsuke Sumiyoshi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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

Keywords

  • Nuclear EOS
  • Nuclear matter
  • Symmetry energy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics
  • Physics and Astronomy(all)

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