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

doi:10.1103/PhysRevLett.111.112503

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

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

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.

Original language	English
Article number	112503
Journal	Physical review letters
Volume	111
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.111.112503
Publication status	Published - Sept 13 2013
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.111.112503

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abstract = "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.",

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T1 - Equation of state for nucleonic matter and its Quark mass dependence from the nuclear force in lattice QCD

AU - Inoue, Takashi

AU - Aoki, Sinya

AU - Doi, Takumi

AU - Hatsuda, Tetsuo

AU - Ikeda, Yoichi

AU - Ishii, Noriyoshi

AU - Murano, Keiko

AU - Nemura, Hidekatsu

AU - Sasaki, Kenji

PY - 2013/9/13

Y1 - 2013/9/13

N2 - 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.

AB - 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.

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

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