Study of Hyperon Superfluidity in Neutron Stars using Lattice QCD

• Project/Area Number: 26400281
• 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: Nihon University
• Principal Investigator: INOUE Takashi 日本大学, 生物資源科学部, 教授 (80407353)
• Research Collaborator: SASAKI Kenji
• Project Period (FY): 2014-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
• Keywords: ハイペロン / 超流動 / 中性子星 / 量子色力学 / 格子場の理論 / ハイペロン相互作用 / QCD / ハイパー核 / 格子ＱＣＤ / ギャップ方程式 / 格子QCD

Outline of Final Research Achievements

Purpose of this research is revealing whether hyperon superfluidity is realized in the core of neutron stars. Since hyperon interactions are experimentally unknown, first we determine them based on the fundamental theory QCD, and then apply them. In order to study hyperon superfluidity, hyperon single-particle potential is an indispensable quantity.
Within this budget period, I could derive hyperon interaction by doing lattice QCD numerical calculation, and could compute hyperon single-particle potential applying obtained interactions to the Brueckner-Hartree-Fock quantum many-body theory. Depth of the obtained hyperon single-particle potentials qualitatively agree well with the hypernuclear experimental data. This is the first ever success of explaining hypernuclear physics from the fundamental theory QCD, and it is highly appreciated.

Research Products

• [Int'l Joint Research] サリー大学(英国)
• [Journal Article] Doubly magic nuclei from Lattice QCD forces at Mps = 469 MeV/c^2 (2018)
  • Author(s): C. McIlroy, C. Barbieri, T. Inoue, T. Doi and T. Hatsuda
  • Journal Title: Phys. Rev. C Volume: 97 Issue: 2
  • DOI: 10.1103/physrevc.97.021303
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Are two nucleons bound in lattice QCD for heavy quark masses? Consistency check with L?scher’s finite volume formula (2017)
  • Author(s): Iritani Takumi、Aoki Sinya、Doi Takumi、Hatsuda Tetsuo、Ikeda Yoichi、Inoue Takashi、Ishii Noriyoshi、Nemura Hidekatsu、Sasaki Kenji、HAL QCD Collaboration
  • Journal Title: Physical Review D Volume: 96 Issue: 3 Pages: 034521-034521
  • DOI: 10.1103/physrevd.96.034521
  • Peer Reviewed / Open Access
• [Journal Article] Fully coupled-channels complex scaling method for the K-pp system (2017)
  • Author(s): Akinobu Dote, Takashi Inoue, and Takayuki Myo
  • Journal Title: Phys. Rev. C Volume: 95 Issue: 6 Pages: 062201-062201
  • DOI: 10.1103/physrevc.95.062201
  • Peer Reviewed
• [Journal Article] Hyperon single-particle potentials from QCD on lattice (2017)
  • Author(s): Takashi Inoue for HAL QCD Collaboration
  • Journal Title: PROCEEDINGS of SCIENCE Volume: INPC Pages: 277-277
  • Peer Reviewed / Open Access
• [Journal Article] Mirage in Temporal Correlation functions for Baryon-Baryon Interactions in Lattice QCD (2016)
  • Author(s): Takumi Iritani, Takumi Doi, Sinya Aoki, Shinya Gongyo, Tetsuo Hatsuda, Yoichi Ikeda, Takashi Inoue, Noriyoshi Ishii, Keiko Murano, Hidekatsu Nemura, Kenji Sasaki
  • Journal Title: JHEP Volume: 1610 Issue: 10 Pages: 101-101
  • DOI: 10.1007/jhep10(2016)101
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Fate of the Tetraquark Candidate Zc(3900) in Lattice QCD (2016)
  • Author(s): Yoichi Ikeda, Sinya Aoki, Takumi Doi, Shinya Gongyo, Tetsuo Hatsuda, Takashi Inoue, Takumi Iritani, Noriyoshi Ishii, Keiko Murano, Kenji Sasaki
  • Journal Title: Physical Review Leters Volume: 117 Issue: 24 Pages: 242001-242001
  • DOI: 10.1103/physrevlett.117.242001
  • NAID: 120006826715
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Nuclear physics from QCD on lattice (2015)
  • Author(s): T. Inoue
  • Journal Title: PROCEEDINGS of SCIENCE Volume: Chiral Dynamics Pages: 20-20
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] クォークから中性子星へ -格子QCD計算を用いた新たな挑戦- (2015)
  • Author(s): 井上貴史
  • Journal Title: 日本物理学会誌 Volume: 70 Pages: 921-925
  • Peer Reviewed
• [Journal Article] Coupled channel approach to strangeness S = -2 baryon-bayron interactions in Lattice QCD (2015)
  • Author(s): Kenji Sasaki, Sinya Aoki , Takumi Doi, Tetsuo Hatsuda, Yoichi Ikeda, Takashi Inoue, Noriyoshi Ishii, Keiko Murano
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: 2015 Issue: 11 Pages: 1-18
  • DOI: 10.1093/ptep/ptv144
  • NAID: 120005848259
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Theoretical Study of a Prototype System of Kaonic Nuclei "K-pp" (2015)
  • Author(s): Akinobu Dote, Takashi Inoue, Takayuki Myo
  • Journal Title: Japan Physical Society Conference Proceedings Volume: 8 Pages: 021011-021011
  • DOI: 10.7566/jpscp.8.021011
  • Peer Reviewed / Open Access
• [Journal Article] Investigation of $K^{bar}NN$ resonances with a coupled-channel Complex Scaling Method + Feshbach projection (2015)
  • Author(s): Akinobu Dote, Takashi Inoue, Takayuki Myo
  • Journal Title: Hyperfine Interactions (Springer) Volume: to appear Issue: 1-3 Pages: 1-7
  • DOI: 10.1007/s10751-015-1152-x
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Omega-Omega interaction from 2+1 flavor lattice QCD (2015)
  • Author(s): M. Yamada, K. Sasaki, S. Aoki, T. Doi, T. Hatsuda, Y. Ikeda, T. Inoue, N. Ishii, K. Murano, H. Nemura
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: 2015 Issue: 7 Pages: 071B01-071B01
  • DOI: 10.1093/ptep/ptv091
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Medium-heavy Nuclei from Lattice Quantum Chromodynamics (2015)
  • Author(s): T. Inoue
  • Journal Title: Proceedings of 20th International Conference on Particles and Nuclei (PANIC 14) Volume: DESY-PROC Pages: 95-98
  • DOI: 10.3204/DESY-PROC-2014-04/26
  • Acknowledgement Compliant
• [Journal Article] Application of a coupled-channel complex scaling method with Feshbach projection to the K-pp system (2015)
  • Author(s): Akinobu Dote, Takashi Inoue, Takayuki Myo
  • Journal Title: Prog. Theor. Exp. Phys. Volume: 2015 Issue: 4 Pages: 43D02-0
  • DOI: 10.1093/ptep/ptv039
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Medium-Heavy Nuclei from Nucleon-Nucleon Interactions in Lattice QCD (2015)
  • Author(s): T. Inoue, S. Aoki, B. Charron, T. Doi, T. Hatsuda, Y. Ikeda, N. Ishii, K. Murano, H. Nemura and K. Sasaki (HAL QCD Collaboration)
  • Journal Title: Phys. Rev. C Volume: 91 Issue: 1
  • DOI: 10.1103/physrevc.91.011001
  • NAID: 120007130394
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Essential Kbar cluster "K-pp" studied with a coupled-channel Complex Scaling Method + Feshbach method (2014)
  • Author(s): Akinobu Dote, Takashi Inoue, Takayuki Myo
  • Journal Title: Journal of Physics: Conference Series Volume: 569 Pages: 012084-012084
  • DOI: 10.1088/1742-6596/569/1/012084
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Spin-2 NΩ Dibaryon from Lattice QCD (2014)
  • Author(s): F. Etminan, H. Nemura S. Aoki, T. Doi, T. Hatsuda, Y. Ikeda, T. Inoue, N. Ishii, K. Murano and K. Sasaki (HAL QCD Collaboration)
  • Journal Title: Nucl. Phys. A Volume: 928 Pages: 89-89
  • DOI: 10.1016/j.nuclphysa.2014.05.014
  • NAID: 120007136561
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Spin-Orbit Force from Lattice QCD (2014)
  • Author(s): K. Murano, N. Ishii, S. Aoki, T. Doi, T. Hatsuda, Y. Ikeda, T. Inoue, H. Nemura and K. Sasaki (HAL QCD Collaboration)
  • Journal Title: Phys. Lett. B Volume: 735 Pages: 19-24
  • DOI: 10.1016/j.physletb.2014.05.061
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Equation of State of Nucleon Matters from Lattice QCD Simulations (2014)
  • Author(s): T. Inoue
  • Journal Title: PROCEEDINGS OF SCIENCE Volume: Lattice/2013
  • Peer Reviewed
• [Presentation] 物理点格子QCDによる近似的な核力とその応用 (2018)
  • Author(s): 井上貴史
  • Organizer: 日本物理学会第７３回年次大会
• [Presentation] 格子QCDを用いた核物質中のハイペロンの研究 (2017)
  • Author(s): 井上貴史
  • Organizer: 基礎物理学研究所研究会「核力に基づく核構造・核反応物理の展開」
  • Place of Presentation: 京都大学基礎物理学研究所（京都府京都市）
  • Year and Date: 2017-03-27
  • Invited
• [Presentation] 物理点格子ＱＣＤによるハイペロン化学ポテンシャル (2017)
  • Author(s): 井上貴史 for HAL QCD Collaboration
  • Organizer: 日本物理学会第７２回年次大会
  • Place of Presentation: 大阪大学（大阪府豊中市）
  • Year and Date: 2017-03-17
• [Presentation] Strange nuclear physics from QCD on lattice (2017)
  • Author(s): Takashi Inoue
  • Organizer: International Workshop on Quantum Many-Body Problems in Particle, Nuclear, and Atomic Physics
  • Place of Presentation: Danang (Vietnam)
  • Year and Date: 2017-03-08
  • Int'l Joint Research / Invited
• [Presentation] 格子QCD計算を用いた核物質中のハイペロンの研究 (2017)
  • Author(s): 井上貴史
  • Organizer: 素粒子・原子核・宇宙「京からポスト京に向けて」シンポジウム
  • Invited
• [Presentation] Hyperons in infinite nuclear matter based on the hyperon-baryon interactions from the HALQCD method (2017)
  • Author(s): Takashi Inoue
  • Organizer: 2nd EMMI Workshop on anti-matter, hyper-matter and exotica production at the LHC
  • Invited
• [Presentation] 物理点格子QCDによるハイペロン混合物質 (2017)
  • Author(s): 井上貴史
  • Organizer: 日本物理学会２０１７年秋季大会
• [Presentation] 格子QCDバリオン間相互作用の特徴 (2017)
  • Author(s): 井上貴史
  • Organizer: 原子核多体問題の進展と展望
  • Invited
• [Presentation] 物理点格子QCDによるハイペロン一体ポテンシャル (2016)
  • Author(s): 井上貴史 for HAL QCD Collaboration
  • Organizer: 日本物理学会２０１６年秋季大会
  • Place of Presentation: 宮崎大学（宮崎県宮崎市）
  • Year and Date: 2016-09-21
• [Presentation] Hyperon single-particle potentials from QCD on lattice (2016)
  • Author(s): Takashi Inoue
  • Organizer: The 26th International Nuclear Physics Conference (INPC2016)
  • Place of Presentation: Adelaide (Australia)
  • Year and Date: 2016-09-12
  • Int'l Joint Research
• [Presentation] 中性子星と格子QCD (2016)
  • Author(s): 井上貴史
  • Organizer: 素粒子・原子核・宇宙「京からポスト京に向けて」シンポジウム
  • Place of Presentation: ワテラスコモンホール（東京都千代田区）
  • Year and Date: 2016-03-30
• [Presentation] 物理点格子QCDによるバリオン対相関ギャップ (2016)
  • Author(s): 井上貴史
  • Organizer: 日本物理学会第71回年次大会
  • Place of Presentation: 東北学院大学（宮城県仙台市）
  • Year and Date: 2016-03-19
• [Presentation] Atomic nucleus from QCD on lattice (2015)
  • Author(s): Takashi Inoue
  • Organizer: The 11th European Research Conference on Electromagnetic Interactions with Nucleons and Nuclei (EINN)
  • Place of Presentation: パフォス市（キプロス共和国）
  • Year and Date: 2015-11-02
  • Int'l Joint Research / Invited
• [Presentation] Studies on nuclei starting from quantum chromodynamics (2015)
  • Author(s): Takashi Inoue
  • Organizer: YIPQS Long-term and Nishinomiya-Yukawa Memorial International workshop, Computational Advances in Nuclear and Hadron Physics (CANHP 2015)
  • Place of Presentation: 京都大学基礎物理学研究所（京都府京都市）
  • Year and Date: 2015-10-08
  • Int'l Joint Research / Invited
• [Presentation] 格子QCDにおける中重核の質量と構造 (2015)
  • Author(s): 井上貴史
  • Organizer: 日本物理学会２０１５年秋季大会
  • Place of Presentation: 大阪市立大学（大阪府大阪市）
  • Year and Date: 2015-09-25
• [Presentation] Nuclear Physics from QCD on lattice (2015)
  • Author(s): Takashi Inoue
  • Organizer: The 8th International workshop on Chiral Dynamics 2015
  • Place of Presentation: Pisa University（イタリア共和国）
  • Year and Date: 2015-06-29
  • Int'l Joint Research / Invited
• [Presentation] 格子QCDにおける中重核 (2014)
  • Author(s): 井上貴史
  • Organizer: RCNP研究会「QCDを基礎とする核子多体系物理の理解」
  • Place of Presentation: 大阪大学核物理研究センター（大阪府茨木市美穂ヶ丘10-1 ）
  • Year and Date: 2014-12-19 – 2014-12-20
  • Invited
• [Presentation] 格子QCDによるハイペロン力の研究 -現状と展望 (2014)
  • Author(s): 井上貴史
  • Organizer: Hadron Spectroscopy Cafe
  • Place of Presentation: 東京工業大学（東京都目黒区大岡山２丁目１２－１）
  • Year and Date: 2014-11-28
  • Invited
• [Presentation] Medium-heavy nuclei from lattice quantum chromodynamics (2014)
  • Author(s): T. Inoue for HAL QCD Collaboration
  • Organizer: 20th Particles & Nuclei International Conference (PANIC 2014)
  • Place of Presentation: University of Hamburg (ドイツ連邦共和国ハンブルク市）
  • Year and Date: 2014-08-25 – 2014-08-29
• [Remarks] 井上貴史のホームページ(準備中)
  • URL: http://hp.brs.nihon-u.ac.jp/~t-inoue/index.html
• [Remarks] 井上貴史のホームページ（準備中）
  • URL: http://hp.brs.nihon-u.ac.jp/~t-inoue/index.html
• [Remarks]
  • URL: http://hp.brs.nihon-u.ac.jp/~t-inoue/index.html