The equation of state of asymmetric nuclear matter at zero and finite temperatures with the variational method

Hajime Togashi, Hiroaki Kanzawa, Masatoshi Takano

研究成果: Conference article査読

抄録

The equation of state (EOS) of asymmetric nuclear matter at zero and finite temperatures is constructed with the variational method, starting from the realistic nuclear Hamiltonian composed of the AV18 and UIX nuclear potentials. At zero temperature, the energy per nucleon of asymmetric nuclear matter is calculated in the two-body-cluster approximation with the three-body-force contribution treated somewhat phenomenologically so as to reproduce the empirical saturation conditions. At finite temperatures, the free energies per nucleon of asymmetric nuclear matter are obtained with an extension of the variational method by Schmidt and Pandharipande. Validity of the frozen-correlation approximation employed in this study is confirmed. The obtained free energies and related thermodynamic quantities for various densities, temperatures and proton fractions are essential ingredients in our project for constructing a new nuclear EOS table for supernova simulations.

本文言語English
ジャーナルProceedings of Science
出版ステータスPublished - 2010
外部発表はい
イベント11th Symposium on Nuclei in the Cosmos, NIC 2010 - Heidelberg, Germany
継続期間: 2010 7 192010 7 23

ASJC Scopus subject areas

  • 一般

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