Equation of state for nucleonic matter and its Quark mass dependence from the nuclear force in lattice QCD

Takashi Inoue, Sinya Aoki, Takumi Doi, Tetsuo Hatsuda, Yoichi Ikeda, Noriyoshi Ishii, Keiko Murano, Hidekatsu Nemura, Kenji Sasaki

研究成果: ジャーナルへの寄稿学術誌査読

45 被引用数 (Scopus)

抄録

Quark mass dependence of the equation of state (EOS) for nucleonic matter is investigated, on the basis of the Brueckner-Hartree-Fock method with the nucleon-nucleon interaction extracted from lattice QCD simulations. We observe saturation of nuclear matter at the lightest available quark mass corresponding to the pseudoscalar meson mass 469 MeV. Mass-radius relation of the neutron stars is also studied with the EOS for neutron-star matter from the same nuclear force in lattice QCD. We observe that the EOS becomes stiffer and thus the maximum mass of neutron star increases as the quark mass decreases toward the physical point.

本文言語英語
論文番号112503
ジャーナルPhysical review letters
111
11
DOI
出版ステータス出版済み - 9月 13 2013
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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