Mixed phase in the first-order phase transition of nuclear matter at finite temperature

• Project/Area Number: 23540325
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: MARUYAMA Toshiki 独立行政法人日本原子力研究開発機構, 原子力科学研究部門 先端基礎研究センター, 研究主幹 (50354882)
• Co-Investigator(Kenkyū-buntansha): TATSUMI Toshitaka 京都大学, 理学研究科, 助教 (40155099)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 中性子星 / 超新星コア / 原子核物質 / 相転移 / パスタ構造 / 有限温度 / 非一様構造 / 平均場理論 / 中性子星質量 / 剪断係数 / 原始中性子星 / ニュートリノ

Research Abstract

We have explored the properties and structures of nuclear matter relevant to the core of supernovae. Particularly, the appearance of mixed phase of liquid and gas was studied in detail. The cooling process of neutron stars by the Urca process was studied by considering hadron-quark mixed phase. We succeeded in explaining the cooling of Cas A neutron star.
We have revised our model of hadron-quark mixed phase at high density and succeeded in explaining the mass and radius of neutron star as heavy as twice the solar mass.

Research Products

• [Journal Article] Cooling of compact stars with color superconducting phase in quark hadron mixed phase (2013)
  • Author(s): T. Noda, M. Hashimoto, Y. Matsuo, N. Yasutake, T. Maruyama, T. Tatsumi, M. Fujimoto
  • Journal Title: Astrophys.J Volume: 765 Pages: 1-1
  • Peer Reviewed
• [Journal Article] Shear oscillations in the hadron-quark mixed phase (2013)
  • Author(s): H. Sotani, T. Maruyama, T. Tatsumi
  • Journal Title: Nucl. Phys
  • NAID: 120005244399
  • Peer Reviewed
• [Journal Article] Nuclear " pasta " structures in low-density nuclear matter and properties of the neutron-star crust (2013)
  • Author(s): M. Okamoto, T. Maruyama, K. Yabana, T. Tatsumi
  • Journal Title: Phys. Rev Volume: C88
  • Peer Reviewed
• [Journal Article] Nuclear “pasta” structures in low-density nuclear matter and properties of the neutron-star crust, (2013)
  • Author(s): M.Okamoto, T.Maruyama, K.Yabana, T.Tatsumi
  • Journal Title: Phys. Rev. C Volume: 88 Issue: 2
  • DOI: 10.1103/physrevc.88.025801
  • Peer Reviewed
• [Journal Article] Shear oscillations in the hadron-quark mixed phase (2013)
  • Author(s): H.Sotani, T.Maruyama, T.Tatsumi
  • Journal Title: Nucl. Phys. A Volume: 906 Pages: 37-49
  • DOI: 10.1016/j.nuclphysa.2013.03.011
  • NAID: 120005244399
  • Peer Reviewed
• [Journal Article] Cooling of Compact Stars with Color Superconducting Phase in Quark-hadron Mixed Phase (2013)
  • Author(s): T. Noda, M. Hashimoto, N. Yasutake, T. Maruyama, T. Tatsumi, M.Y. Fujimoto
  • Journal Title: Astrophysical Journal Volume: 765 Issue: 1 Pages: 1-5
  • DOI: 10.1088/0004-637x/765/1/1
  • Peer Reviewed
• [Journal Article] Non-congruence of liquid-gas phase transition of asymmetric nuclear matter (2012)
  • Author(s): T. Maruyama and T. Tatsumi
  • Journal Title: AIP Conf. Proc Volume: 1441 Pages: 387-387
  • Peer Reviewed
• [Journal Article] Three dimensional structure of low-density nuclear matter (2012)
  • Author(s): M. Okamoto, T. Maruyama, K. Yabana, T. Tatsumi
  • Journal Title: Phys. Lett Volume: B713 Pages: 284-284
  • Peer Reviewed
• [Journal Article] Molecular dynamics for dense matter (2012)
  • Author(s): T. Maruyama, G. Watanabe, S. Chiba
  • Journal Title: Prog. Theor. Exp. Phys Volume: 2012(1)
  • Peer Reviewed
• [Journal Article] Amorphous state in the mixed phase of hadron-quark phase transition in protoneutron stars (2012)
  • Author(s): N. Yasutake, T. Maruyama, T. Tatsumi
  • Journal Title: Phys. Rev Volume: 86
  • Peer Reviewed
• [Journal Article] Pasta structures in neutrino degenerate nuclear matter (2012)
  • Author(s): T. Maruyama, N. Yasutake, T. Tatsumi
  • Journal Title: Proc. of Sci Pages: 125-125
  • Peer Reviewed
• [Journal Article] Non-uniform structure in low-density nuclear matter and neutron star crust (2012)
  • Author(s): M. Okamoto, T. Maruyama, K. Yabana, T. Tatsumi
  • Journal Title: Proc. of Sci Pages: 218-218
  • Peer Reviewed
• [Journal Article] Amorphous state in the mixed phase of quark-hadron phase transition in protoneutron stars (2012)
  • Author(s): Nobutoshi Yasutake, Toshiki Maruyama, Toshitaka Tatsumi
  • Journal Title: Phys.Rev. D Volume: 86 Issue: 10 Pages: 1013021-4
  • DOI: 10.1103/physrevd.86.101302
  • Peer Reviewed
• [Journal Article] Non-congruence of liquid-gas phase transition of asymmetric nuclear matter (2012)
  • Author(s): Toshiki Maruyama, Toshitaka Tatsumi
  • Journal Title: AIP Conf.Proc. Volume: 1441 Pages: 387-389
  • DOI: 10.1063/1.3700563
  • Peer Reviewed
• [Journal Article] Pasta structures in neutrino-degenerate nuclear matter (2012)
  • Author(s): T. Maruyama, N. Yasutake, T. Tatsumi
  • Journal Title: Proc. of Sci. Volume: NIC XII Pages: 125-125
  • Peer Reviewed
• [Journal Article] Multi-antikaonic nuclei and in-medium kaon properties in dense matter (2011)
  • Author(s): T. Muto, T. Maruyama and T. Tatsumi
  • Journal Title: J. Phys. Conf. Ser Volume: 312 Pages: 22018-22018
  • Peer Reviewed
• [Journal Article] Liquid-gas mixed phase in nuclear matter at finite temperature (2011)
  • Author(s): T. Maruyama and T. Tatsumi
  • Journal Title: J. Phys. Conf. Ser Volume: 312 Pages: 42015-42015
  • Peer Reviewed
• [Journal Article] Pasta Structures of Quark-Hadron Phase Transition in Proto-Neutron (2011)
  • Author(s): Stars, N. Yasutake, T. Maruyama and T. Tatsumi
  • Journal Title: J. Phys. Conf. Ser Volume: 312 Pages: 42027-42027
  • Peer Reviewed
• [Journal Article] Effect of Λ(1405) on the structure of multi-antikaonic nuclei (2011)
  • Author(s): T. Muto, T. Maruyama, T. Tatsumi
  • Journal Title: AIP Conf. Proc Volume: 1374 Pages: 197-197
  • Peer Reviewed
• [Journal Article] Multi-antikaonic nuclei and in-medium kaon properties in dense matter (2011)
  • Author(s): T. Muto, T. Maruyama and T. Tatsumi
  • Journal Title: J. Phys. Conf. Ser. Volume: 312 Pages: 22018-22018
  • Peer Reviewed
• [Journal Article] Liquid-gas mixed phase in nuclear matter at finite temperature (2011)
  • Author(s): T. Maruyama and T. Tatsumi
  • Journal Title: J. Phys. Conf. Ser. Volume: 312 Pages: 42015-42015
  • Peer Reviewed
• [Journal Article] Pasta Structures of Quark-Hadron Phase Transition in Proto-Neutron Stars (2011)
  • Author(s): N. Yasutake, T. Maruyama and T. Tatsumi
  • Journal Title: J. Phys. Conf. Ser. Volume: 312 Pages: 42027-42027
  • Peer Reviewed
• [Journal Article] Effect of Lambda(1405) on the structure of multi-antikaonic nuclei (2011)
  • Author(s): T. Muto, T. Maruyama, T. Tatsumi
  • Journal Title: AIP Conf. Proc. Volume: 1374 Pages: 197-197
  • Peer Reviewed
• [Presentation] Inhomogeneous structures of neutron star crust and mechanical properties (2014)
  • Author(s): T. Maruyama, M. Okamoto, N. Yasutake, T. Tatsumi
  • Organizer: International Conference on the Structure and Signals of Neutron Stars, from Birth to Death
  • Place of Presentation: Florence, Italy
• [Presentation] Inhomogeneous structures of neutron star crust and mechanical properties, (2014)
  • Author(s): T. Maruyama
  • Organizer: International Conference on the Structure and Signals of Neutron Stars, from Birth to Death
  • Place of Presentation: Florence (Italy)
• [Presentation] Inhomogeneous Matter in Compact Stars (2013)
  • Author(s): T. Maruyama
  • Organizer: Seminar at Cyclotron Laboratory, Texas A&M Univ
  • Place of Presentation: College Station, USA
  • Year and Date: 2013-12-06
  • Invited
• [Presentation] Structure of Inhomogeneous Nuclear Matter in Compact Stars, T. Maruyama, N. Yasutake (2013)
  • Author(s): M. Okamoto, and T. Tatsumi
  • Organizer: Workshop on Future Prospects of Hadron Physics at J-PARC and Large Scale Computational Physics in 2013
  • Place of Presentation: Tokai, (Japan)
• [Presentation] ニュートリノを含む低密度原子核物質の状態方程式 (2013)
  • Author(s): 丸山敏毅, 安武伸俊, 巽敏
  • Organizer: 日本物理学会2012年
  • Place of Presentation: 東広島
• [Presentation] ハドロン-クォーク混合相におけるシアー振動 (2013)
  • Author(s): 祖谷元, 丸山敏毅, 巽敏隆
  • Organizer: 日本物理学会2012年
  • Place of Presentation: 東広島
• [Presentation] Hadron-Quark Mixed Phase with Geometrical Structure and Equation of State (2013)
  • Author(s): T. Maruyama
  • Organizer: EMMI Rapid reaction task force meeting on Quark Matter in Compact Stars
  • Place of Presentation: Frankfurt, Germany
  • Invited
• [Presentation] Inhomogeneous matter in compact stars (2013)
  • Author(s): T. Maruyama, N. Yasutake, M. Okamoto, T. Tatsumi
  • Organizer: HPCI & iTHES Workshop on Neutron Matter with Strangeness
  • Place of Presentation: Wako, Japan
  • Invited
• [Presentation] Mean field approach to the structure and properties of neutron star matter (2013)
  • Author(s): T. Maruyama
  • Organizer: Texas Symposium on Relativistic Astrophysics
  • Place of Presentation: Dallas, USA
• [Presentation] General description of quantum molecular dynamics (2013)
  • Author(s): T. Maruyama
  • Organizer: RIKEN workshop on Nuclear Symmetry-Energy and Nucleus-Nucleus Collision Simulations
  • Place of Presentation: Wako, Japan
  • Invited
• [Presentation] Hadron-Quark Mixed Phase with Geometrical Structure and Equation of State, (2013)
  • Author(s): T. Maruyama
  • Organizer: EMMI Rapid reaction task force meeting on Quark Matter in Compact Stars
  • Place of Presentation: Frankfur (Germany)
  • Invited
• [Presentation] Inhomogeneous matter in compact stars (2013)
  • Author(s): T.Maruyama
  • Organizer: HPCI & iTHES Workshop on Neutron Matter with Strangeness
  • Place of Presentation: Wako (Japan)
  • Invited
• [Presentation] Mean field approach to the structure and properties of neutron star matter (2013)
  • Author(s): T. Maruyama
  • Organizer: Texas Symposium on Relativistic Astrophysics
  • Place of Presentation: Dallas (USA)
• [Presentation] ニュートリノを含む低密度原子核物質の状態方程式 (2013)
  • Author(s): 丸山敏毅,安武伸俊, 巽敏隆
  • Organizer: 日本物理学会第68回年会,
  • Place of Presentation: 広島大学 (東広島)
• [Presentation] Structure and properties of nuclear matter in compact stars (2012)
  • Author(s): T. Maruyama, M. Okamoto, N. Yasutake, T. Tatsumi
  • Organizer: VII Italy-Japan symposium on nuclear physics
  • Invited
• [Presentation] Structure and properties of low-density nuclear matter with inclusion of neutrino (2012)
  • Author(s): T. Maruyama, N. Yasutake, T. Tatsumi
  • Organizer: 12th Int. Symp. "Nuclei in the Cosmos"
  • Place of Presentation: Cairns (Australia)
• [Presentation] Non-uniform structure in low-density nuclear matter and neutron star crust (2012)
  • Author(s): M. Okamoto, T. Maruyama, K. Yabana, T. Tatsumi
  • Organizer: 12th Int. Symp. "Nuclei in the Cosmos"
  • Place of Presentation: Cairns (Australia)
• [Presentation] Inhomogeneous low-density nuclear matter and equation of state (2012)
  • Author(s): 丸山敏毅, 安武伸俊, 巽敏隆
  • Organizer: 研究会"ハドロン物質の諸相と状態方程式--中性子星の観測に照らして-"
  • Place of Presentation: 京都
• [Presentation] ニュートリノを含む非一様原子核物質 (2012)
  • Author(s): 丸山敏毅, 安武伸俊, 巽敏隆
  • Organizer: 日本物理学会2012年
  • Place of Presentation: 京都
• [Presentation] 原子核中でのK 中間子とハイペロンの共存可能性 (2012)
  • Author(s): 武藤巧, 丸山敏毅, 安武伸俊, 巽敏隆
  • Organizer: 日本物理学会
  • Place of Presentation: 東広島
• [Presentation] Structure and properties of low-density nuclear matter with inclusion of neutrino (2012)
  • Author(s): T.Maruyama, N. Yasutake, T. Tatsumi
  • Organizer: 12th Int. Symp. "Nuclei in the Cosmos"
  • Place of Presentation: Cairns Convention Centre (Cairns, Australia)
• [Presentation] Inhomogeneous low-density nuclear matter and equation of state (2012)
  • Author(s): 丸山敏毅, 安武伸俊, 巽敏隆
  • Organizer: 基研研究会"ハドロン物質の諸相と状態方程式ー中性子星の観測に照らしてー"
  • Place of Presentation: 京都大学 (京都)
• [Presentation] ニュートリノを含む非一様原子核物質 (2012)
  • Author(s): 丸山敏毅,安武伸俊, 巽敏隆
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 京都産業大学 (京都)
• [Presentation] Equation of state of matter in collapsing stars (2012)
  • Author(s): T. Maruyama, M. Okamoto, N. Yasutake, T. Tatsumi
  • Organizer: Tours Symp. on Nucl. Phys. and Astrophys. VIII
  • Place of Presentation: Hotel Seigerhoeh (Lenzkirch, Germany)
  • Invited
• [Presentation] ニュートリノを含む低密度原子核物質 (2012)
  • Author(s): 丸山敏毅、安武伸俊、 巽敏隆
  • Organizer: 日本物理学会67回年次大会
  • Place of Presentation: 兵庫県西宮市
• [Presentation] 多重K中間子束縛原子核の可能性とハイペロン混在 (2012)
  • Author(s): 武藤巧、丸山敏毅、巽敏隆
  • Organizer: 日本物理学会67回年次大会
  • Place of Presentation: 兵庫県西宮市
• [Presentation] Congruence of liquid-gas phase transition of symmetric and asymmetric nuclear matter (2011)
  • Author(s): T. Maruyama and T. Tatsumi
  • Organizer: 19th Particles and Nuclei Interational Conference
  • Place of Presentation: Cambridge, USA
• [Presentation] K中間子束縛原子核におけるハイペロン混在の効果II (2011)
  • Author(s): 武藤巧、丸山敏毅、巽敏隆
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 青森県弘前市
• [Presentation] Inhomogeneous nuclear matter and equation of state
  • Author(s): T. Maruyama, N. Yasutake, M. Okamoto, T. Tatsumi
  • Organizer: VIII Tours symposium on nuclear physics and astrophysics
  • Place of Presentation: Lenzkirch (Germany)
  • Invited
• [Book] Thermodynamical Description of Hadron-Quark Phase Transition and its Implications on Compact-Star Phenomena, Recent Advances in Quarks Research (2013)
  • Author(s): N.Yasutake, T.Noda, H.Sotani, T.Maruyama, T. Tatsumi
  • Publisher: Nova Science Publishers
• [Book] Chap.4 in "Recent Advances in Quarks Research" (2013)
  • Author(s): Nobutoshi Yasutake, Tsuneo Noda, Hajime Sotani, Toshiki Maruyama, Toshitaka Tatsumi (ed. H. Fujikage and K. Hyobanshi,)
  • Publisher: Nova Science Publishers
• [Book] Nuclear pasta in supernovae and neutron stars, "Neutron Star Crust" ed C. A. Bertulani and J.Piekarewiczi (2012)
  • Author(s): G. Watanabe and T. Maruyama
  • Publisher: Nova Science Publishers
• [Book] Mixed phases during the phase transitions, "Neutron Stars" ed. H. Uechi (2012)
  • Author(s): T. Tatsumi, N. Yasutake, T. Maruyama
  • Publisher: Nova Science Publishers
• [Book] Chap. 8 in "Mixed phases during the phase transitions" (2012)
  • Author(s): Toshitaka Tatsumi, Nobutoshi Yasutake, Toshiki Maruyama (ed. H. Uechi, T. S. Uechi and D. Serot)
  • Publisher: Nova Science Publishers
• [Remarks]
  • URL: http://silver.j-parc.jp/hadron/member/maruyama