Properties of neutron star matter based onmodern baryon-baryon interactions

• Project/Area Number: 22540288
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Kyushu Dental College
• Principal Investigator: KONO Michio 九州歯科大学 (40234710)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
• Keywords: 原子核(理論) / 中性子星物質 / バリオン間相互作用 / Λ・Σ・Ξハイペロン / 核物質計算 / ハイペロンポテンシャル / ３体力 / オクテットバリオン / 結合クラスター法 / 多体相関 / 飽和性 / 2体化3体力 / ^4He / 3体相関 / アイソスピン依存性

Research Abstract

Structures of high densitybaryonicmatter realized as a neutron starare studiedon the basis of microscopic baryon-baryon interactions. It is shownthat the fundamental saturation property of nuclearmatter is understood quantitatively by the interaction of the chiral effective field theorywith three-nucleon forces. Sigma and xi hyperons are unlikely to appear in neutron star matter because of their repulsive potentials. Possible three-body force effectsfor lambda hyperonareinvestigated, which are needed to understand the massive neutron star recently observed.

Research Products

• [Journal Article] Λ, Σ, and Ξ hyperons in neutron matter (2013)
  • Author(s): M. Kohno
  • Journal Title: Nuclear Physics A, in press
• [Journal Article] Λ, Σ, and Ξ hyperons in neutron matter (2013)
  • Author(s): M. Kohno
  • Journal Title: Nuclear Physics A Volume: in press Pages: 427-432
  • DOI: 10.1016/j.nuclphysa.2013.02.003
  • Peer Reviewed
• [Journal Article] 4He energies and radii by the coupled-cluster method withmany-body average potential (2012)
  • Author(s): M.Kohnoand R. Okamoto
  • Journal Title: Physical Review C86 Volume: 014317 Pages: 1-11
• [Journal Article] Strength of reduced two-body spin-orbit interaction from achiralthree-nucleon force (2012)
  • Author(s): M. Kohno
  • Journal Title: Physical Review C86 Volume: 061301 Pages: 1-4
• [Journal Article] 4He energies and radii by the coupled-cluster method with many-body average potential (2012)
  • Author(s): M. Kohno and R. Okamoto
  • Journal Title: Physical Review C Volume: 86 Issue: 1
  • DOI: 10.1103/physrevc.86.014317
  • Peer Reviewed
• [Journal Article] Strength of reduced two-body spin-orbit interaction from a chiralthree-nucleon force (2012)
  • Author(s): M. Kohno
  • Journal Title: Physical Review C Volume: 86 Issue: 6
  • DOI: 10.1103/physrevc.86.061301
  • Peer Reviewed
• [Journal Article] Status of breakup reactiontheory (2011)
  • Author(s): K. Ogata, T. Matsumoto, S. Hashimoto, K. Minomo, T. Egami, Y. Iseri, M. Kohno, and others
  • Journal Title: J. of Phys.: Conf. Series 312 Volume: 082008
• [Journal Article] Status of breakup reaction theory (2011)
  • Author(s): K.Ogata, T.Matsumoto, S.Hashimoto, K.Minomo, T.Egami, Y.Iseri, M.Kohno, others
  • Journal Title: J.of Phys. : Conf.Series Volume: 312 Issue: 8 Pages: 82008-82008
  • DOI: 10.1088/1742-6596/312/8/082008
  • Peer Reviewed
• [Journal Article] Comparative study of hyperon-nucleon interactions of quark model and chiral effective field theory by low-momentum equivalent interactions and G matrices (2010)
  • Author(s): M. Kohno
  • Journal Title: Physical Review C81 Volume: 014003 Pages: 1-7
• [Journal Article] Quark-model predictions for the ΞN Interaction and the implications to Ξ hypernuclei" (2010)
  • Author(s): M. Kohno, Y. Fujiwara, and Y. Suzuki
  • Journal Title: Nuclear Physics A835 Pages: 358-361
• [Journal Article] The Brieva-Rook localization of the microscopic nucleon-nucleus potential (2010)
  • Author(s): K. Minomo, K. Ogata, M. Kohno, Y. R. Shimizu, and M. Yahiro
  • Journal Title: J. of Physics G37 Volume: 085011
• [Journal Article] Comparative study of hyperon-nucleon interactions of quark model and chiral effective field theory by low-momentum equivalent interactions and G matrices (2010)
  • Author(s): M.Kohno
  • Journal Title: Physical Review C Volume: 81
  • Peer Reviewed
• [Journal Article] Quark-model predictions for the ΞN Interaction and the implications to Ξ hypernuclei (2010)
  • Author(s): M.Kohno, Y.Fujiwara, Y.Suzuki
  • Journal Title: Nuclear Physics A Volume: 835 Pages: 358-361
  • Peer Reviewed
• [Journal Article] The Brieva-Rook localization of the microscopic nucleon-nucleus potential (2010)
  • Author(s): K.Minomo, K.Ogata, M.Kohno, Y.R.Shimizu, M.Yahiro
  • Journal Title: Journal of Physics G Volume: 37 Pages: 85011-85011
  • Peer Reviewed
• [Presentation] 核反応と有効相互作用 (2013)
  • Author(s): 河野通郎
  • Organizer: 日本物理学会
  • Place of Presentation: 広島大学
  • Year and Date: 2013-03-29
• [Presentation] ΛN相互作用におけるΣNおよびΣ*Nチャンネル結合の寄与 (2013)
  • Author(s): 河野通郎
  • Organizer: 日本物理学会
  • Place of Presentation: 広島大学
  • Year and Date: 2013-03-27
• [Presentation] Λ, Σ, and Ξ hyperons in neutron matter (2012)
  • Author(s): M. Kohno
  • Organizer: 11th International Conference on Hypernuclear and Strange Particle Physics
  • Place of Presentation: Univ. Barcelona
  • Year and Date: 2012-10-04
• [Presentation] 2体化3体力はスピン・軌道場の不足を補う (2012)
  • Author(s): 河野通郎
  • Organizer: 日本物理学会
  • Place of Presentation: 京都産業大学
  • Year and Date: 2012-09-13
• [Presentation] 2体化3体力を取り入れたLOBT 核物質計算 (2012)
  • Author(s): 河野通郎
  • Organizer: 日本物理学会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-24
• [Presentation] 2体化3体力を取り入れたLOBT核物質計算 (2012)
  • Author(s): 河野通郎
  • Organizer: 日本物理学会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-24
• [Presentation] Vlow kを用いた4Heの結合クラスター計算で見る多体相関の効果 (2011)
  • Author(s): 河野通郎, 岡本良治
  • Organizer: 日本物理学会
  • Place of Presentation: 弘前大学
  • Year and Date: 2011-09-16
• [Presentation] V_<low k>を用いた^4Heの結合クラスター計算で見る多体相関の効果 (2011)
  • Author(s): 河野通郎、岡本良治
  • Organizer: 日本物理学会
  • Place of Presentation: 弘前大学
  • Year and Date: 2011-09-16
• [Presentation] 中性子物質内ハイペロンポテンシャル (2011)
  • Author(s): 河野通郎
  • Organizer: 日本物理学会
  • Place of Presentation: 新潟大学
  • Year and Date: 2011-03-26
• [Presentation] 平均2体ポテンシャルを取り入れた4HeのCCM計算 (2010)
  • Author(s): 河野通郎, 岡本良治
  • Organizer: 日本物理学会
  • Place of Presentation: 九州工業大学
  • Year and Date: 2010-09-11
• [Presentation] 平均2体ポテンシャルを取り入れた^4HeのCCM計算 (2010)
  • Author(s): 河野通郎、岡本良治
  • Organizer: 日本物理学会
  • Place of Presentation: 九州工業大学
  • Year and Date: 2010-09-11
• [Presentation] ２体化３体力はスピン・軌道場の不足を補う
  • Author(s): 河野 通郎
  • Organizer: 日本物理学会
  • Place of Presentation: 京都産業大学
• [Presentation] ΛＮ相互作用におけるΣＮおよびΣ＊Ｎチャンネル結合の寄与
  • Author(s): 河野 通郎
  • Organizer: 日本物理学会
  • Place of Presentation: 広島大学
• [Presentation] 核反応と有効相互作用
  • Author(s): 河野 通郎
  • Organizer: 日本物理学会
  • Place of Presentation: 広島大学