• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2012 Fiscal Year Annual Research Report

Nuclear Matter in Neutron Stars Investigated by Experiments and Astronomical Observations

Administrative Group

Project AreaNuclear matter in neutron stars investigated by experiments and astronomical observations
Project/Area Number 24105001
Research InstitutionTohoku University

Principal Investigator

田村 裕和  東北大学, 理学(系)研究科(研究院), 教授 (10192642)

Co-Investigator(Kenkyū-buntansha) 高橋 俊行  大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (50281960)
村上 哲也  京都大学, 理学(系)研究科(研究院), 講師 (50219896)
中村 隆司  東京工業大学, 理工学研究科, 教授 (50272456)
堀越 宗一  東京大学, 工学(系)研究科(研究院), 助教 (00581787)
高橋 忠幸  独立行政法人宇宙航空研究開発機構, 宇宙科学研究所, 教授 (50183851)
大西 明  京都大学, 基礎物理学研究所, 教授 (70250412)
Project Period (FY) 2012-06-28 – 2017-03-31
Keywords原子核物理 / 中性子星 / X線天文学 / 冷却原子 / 核物質 / ストレンジネス / 中性子過剰核 / 重イオン衝突実験
Outline of Annual Research Achievements

総括班分担者(各計画研究代表者)と連携者を集めた定例打ち合わせをほぼ毎月実施し、各計画研究の進捗状況のチェック、研究会やスクール等の企画・準備を行った。ホームページを製作し、プロジェクトの概要、組織、イベントの情報等を掲載した。
キックオフ研究会を2012年6月26~27日に理研で開催し、124名の参加を得た。新領域全体をカバーする21の講演と今後の進め方についての議論を行った。発表の内容はホームページで公開した。
ウィンタースクール「中性子星の核物質2013」を2013年2月25~27日にKEKで開催した。全国の大学院生や若手研究者を中心に予想を大幅に超える約90名が参加した。参加者は基礎的な講義を受けるとともに、関連するJAXAとJ-PARCの施設を見学した。
この他、国際会議(YITP workshop on "Nuclear equation of state and hypernuclear physics" 1月18~19日、京都)を共催で開催、国際会議(Workshop on Future Prospects of Hadron Physics at J-PARC and Large Scale Computational Physics 2月11~13日、東海)と国際スクール(2nd Int. School for Strangeness Nuclear Physics 2月14~20日、東海+仙台)を協賛した。さらに、3件の国内セミナーを主催・共催、1件の国内シンポジウムを協賛した。またアウトリーチ活動として、東北大学サイエンスカフェ(8月31日、仙台メディアテーク)、物理学会主催「公開講座」(11月3日、東京大学小柴ホール)、出前授業(2月14日、新潟県市立十日町中学校)を行った。
新学術領域の海外への宣伝のための講演を様々な国際会議で計9件行った.

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

キックオフシンポジウムおよび若手向けスクールは、予想以上の参加者があり、活発な議論が行われて大きな成果があがった。ホームページ作成、国内外のセミナー・シンポジウムの開催や協賛、海外での宣伝活動や市民向けアウトリーチ活動も行い、順調な滑り出しとなった。一方、検出器の共同開発・共同利用の検討については、各研究班の活動が立ち上がったあとの次年度から行うこととなった。

Strategy for Future Research Activity

H25年度以降も、H24年度に行ったのと同様の大規模な全体研究会と若手スクールを行うとともに、セミナーの開催、国内外の関連テーマのシンポジウの共催・協賛、海外調査やアウトリーチ活動を進める。また、H25年度は、総括班として国際会議を主催し、海外の関連する研究者も巻き込んで中性子星核物質の解明に向けて研究活動を一層活発化させることを目指す。また、検出器の共同開発・共同利用を目指したワークショップを開催する。また、各計画研究が順調に進むように、小規模のセミナーや、総括班メンバーがより頻繁に議論を行えるような打ち合わせを増やしたい。

Remarks

開催した研究会、スクール、セミナーや、各計画研究を含む当新学術領域すべての研究業績は、ここに掲載されている。

  • Research Products

    (46 results)

All 2013 2012 Other

All Journal Article (21 results) (of which Peer Reviewed: 17 results) Presentation (24 results) (of which Invited: 22 results) Remarks (1 results)

  • [Journal Article] Study of Lambda hypernuclei using hadron beams and gamma-ray spectroscopy at J-PARC2013

    • Author(s)
      H.Tamura, M. Ukai, T.O. Yamamoto, T. Koike
    • Journal Title

      Nucl. Phys. A

      Volume: 881 Pages: 310-321

    • DOI

      10.1016/j.nuclphysa.2012.02.013

    • Peer Reviewed
  • [Journal Article] The electric dipole response of exotic nuclei2013

    • Author(s)
      T.Aumann, T.Nakamura
    • Journal Title

      Phys. Scr. T

      Volume: 152 Pages: 014012-1-27

    • DOI

      10.1088/0031-8949/2013/T152/014012

    • Peer Reviewed
  • [Journal Article] Short-Term Variability of X-rays from Accreting Neutron Star Vela X-1: I. Suzaku Observations2013

    • Author(s)
      Hirokazu Odaka, Dmitry Khangulyan, Yasuyuki T. Tanaka, Shin Watanabe, Tadayuki Takahashi, Kazuo Makishima
    • Journal Title

      Astrophysical Journal

      Volume: 未定 Pages: 未定

    • Peer Reviewed
  • [Journal Article] Strangeness Nuclear Physics at J-PARC2012

    • Author(s)
      H. Tamura
    • Journal Title

      Prog. Theor. Exp. Phys.

      Volume: 02B Pages: 012-1-18

    • DOI

      10.1093/ptep/pts056

    • Peer Reviewed
  • [Journal Article] Beam and SKS spectrometers at the K1.8 beam line2012

    • Author(s)
      T. Takahashi et al.
    • Journal Title

      Prog. Theor. Exp. Phys.

      Volume: 02B Pages: 010-1-16

    • DOI

      10.1093/ptep/pts023

    • Peer Reviewed
  • [Journal Article] The K1.8BR spectrometer system at J-PARC2012

    • Author(s)
      K. Agari et al.
    • Journal Title

      Prog. Theor. Exp. Phys.

      Volume: 02B Pages: 011-1-28

    • DOI

      10.1093/ptep/pts039

    • Peer Reviewed
  • [Journal Article] Secondary charged beam lines at the J-PARC hadron experimental hall2012

    • Author(s)
      K. Agari et al.
    • Journal Title

      Prog. Theor. Exp. Phys.

      Volume: 02B Pages: 009-1-16

    • DOI

      10.1093/ptep/pts038

    • Peer Reviewed
  • [Journal Article] Search for the Θ+ pentaquark via the π-p→K-X reaction at 1.92 GeV/c2012

    • Author(s)
      K.Shirotori et al.
    • Journal Title

      Phys. Rev. Lett.

      Volume: 109 Pages: 132002-1-4

    • DOI

      10.1103/PhysRevLett.109.132002

    • Peer Reviewed
  • [Journal Article] Constraints on the symmetry energy and neutron skins from experiments and theory2012

    • Author(s)
      M.B. Tsang et al.
    • Journal Title

      Phys. Rev. C

      Volume: 86 Pages: 015803-1-10

    • DOI

      10.1103/PhysRevC.86.015803

    • Peer Reviewed
  • [Journal Article] Cold-nuclear-matter effcts on heavy-quark production in d+Au collisions at $\sqrt{s_{NN}}$=200 GeV2012

    • Author(s)
      A. Adare et al.
    • Journal Title

      Phys. Rev. Lett.

      Volume: 109 Pages: 242301-1-7

    • DOI

      10.1103/PhysRevLett.109.242301

    • Peer Reviewed
  • [Journal Article] GET: A Generic Electronic System for TPCs for nuclear physics experiments2012

    • Author(s)
      E. Pollacco et al.
    • Journal Title

      Phys. Procedia

      Volume: 37 Pages: 1799-1804

    • DOI

      10.1016/j.phpro.2012.02.506

  • [Journal Article] QCD phase diagram with 2-flavor lattice fermion formulations2012

    • Author(s)
      T. Misumi, T. Kimura, A. Ohnishi
    • Journal Title

      Phys. Rev. D

      Volume: 86 Pages: 094505-1-12

    • DOI

      10.1103/PhysRevD.86.094505

    • Peer Reviewed
  • [Journal Article] Strong-coupling Analysis of Parity Phase Structure in Staggered-Wilson Fermions2012

    • Author(s)
      T. Misumi, T.Z. Nakano, T. Kimura, A. Ohnishi
    • Journal Title

      Phys. Rev. D034501

      Volume: 86 Pages: 034501-1-17

    • DOI

      10.1103/PhysRevD.86.034501

    • Peer Reviewed
  • [Journal Article] Auxiliary field Monte-Carlo study of the QCD phase diagram at strong coupling2012

    • Author(s)
      A. Ohnishi, T. Ichihara, T.Z. Nakano
    • Journal Title

      PoS

      Volume: LATTICE 2012 Pages: 088

  • [Journal Article] QCD critical point sweep during black hole formation2012

    • Author(s)
      A. Ohnishi, H. Ueda, T. Z. Nakano, M. Ruggieri, K. Sumiyoshi
    • Journal Title

      AIP Conf. Proc.

      Volume: 1484 Pages: 327

    • DOI

      10.1063/1.4763415

  • [Journal Article] QCD critical point in the strong coupling lattice QCD and during black hole formation2012

    • Author(s)
      A. Ohnishi et al.
    • Journal Title

      Acta Phys. Pol. B Proc. Suppl.

      Volume: 5 Pages: 815-824

    • Peer Reviewed
  • [Journal Article] One- and two-neutron removal reactions from the most neutron-rich carbon isotopes2012

    • Author(s)
      N. Kobayashi, T.Nakamura, et al.
    • Journal Title

      Phys. Rev. C

      Volume: 86 Pages: 054604-1-11

    • DOI

      10.1103/PhysRevC.86.054604

    • Peer Reviewed
  • [Journal Article] Well Developed Deformation in 42Si2012

    • Author(s)
      S.Takeuchi et al.
    • Journal Title

      Phys. Rev. Lett.

      Volume: 109 Pages: 182501-1-5

    • DOI

      10.1103/PhysRevLett.109.182501

    • Peer Reviewed
  • [Journal Article] N=16 Spherical Shell Closure in 24O2012

    • Author(s)
      K.Tshoo et al.
    • Journal Title

      Phys. Rev. Lett.

      Volume: 109 Pages: 022501-1-5

    • DOI

      10.1103/PhysRevLett.109.022501

    • Peer Reviewed
  • [Journal Article] Development of a tracking detector system with multichannel scintillation fibers and PPD2012

    • Author(s)
      R. Honda et al.
    • Journal Title

      Nucl. Instr. Meth. A

      Volume: 695 Pages: 206-209

    • DOI

      10.1016/j.nima.2011.10.005

    • Peer Reviewed
  • [Journal Article] The Development of the multi PPD readout electronics with EASIROC and SiTCP2012

    • Author(s)
      R. Honda, K. Yoshimura, I. Nakamura, K. Miwa, M. Ikeno, M. Tanaka, T. Uchida, C. De La Taille, hristophe, S. Callier, L. Raux
    • Journal Title

      PoS

      Volume: PhotoDet 2012 Pages: 031

  • [Presentation] Prospect of hypernuclear gamma-ray spectorscopy2013

    • Author(s)
      H. Tamura
    • Organizer
      YITP workshop on nuclear equation of state and hypernuclear physics
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2013-01-18 – 2013-01-19
    • Invited
  • [Presentation] Report by the Japanese SAMURAI-TPC collaboration2013

    • Author(s)
      T. Murakami
    • Organizer
      SAMURAI-TPC review committee meeting
    • Place of Presentation
      East Lansing, Michigan, USA
    • Year and Date
      2013-01-16 – 2013-01-16
    • Invited
  • [Presentation] Three-body coupling effects in relativistic mean field for dense matter EOS2013

    • Author(s)
      A. Ohnishi, K. Tsubakihara
    • Organizer
      YIPQS workshop on "Nuclear equation of state and hyper nuclear physics
    • Place of Presentation
      Kyoto Japan
    • Year and Date
      2013-01-04 – 2013-01-30
    • Invited
  • [Presentation] Strangeness Nuclear Physics2012

    • Author(s)
      H. Tamura
    • Organizer
      Int. Symposium on “Quarks to Universe in Computational Science"
    • Place of Presentation
      Nara, Japan
    • Year and Date
      2012-12-13 – 2012-12-16
    • Invited
  • [Presentation] The ASTRO-H Mission to study non-thermal universe2012

    • Author(s)
      T. Takahashi
    • Organizer
      Exploring the non-thermal Universe with Gamma-rays
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2012-11-06 – 2012-11-09
    • Invited
  • [Presentation] Breakup reactions and halo structures of neutron drip line nuclei2012

    • Author(s)
      T. Nakamura
    • Organizer
      3rd int. symp. on Frontiers in Nuclear Physics,
    • Place of Presentation
      Beijing, China
    • Year and Date
      2012-11-01 – 2012-11-03
    • Invited
  • [Presentation] Measurement of Universal Thermodynamic Functions for a Unitary Fermi Gas2012

    • Author(s)
      M. Horikoshi
    • Organizer
      10th Asian International Seminar on Atomic and Molecular Physics (AISAMP10)
    • Place of Presentation
      Taipei, Taiwan
    • Year and Date
      2012-10-23 – 2012-10-30
    • Invited
  • [Presentation] Deformed halo nuclei probed by breakup reactions2012

    • Author(s)
      T. Nakamura
    • Organizer
      Int. Symp. on "Exotic Nuclear Streucture From Nucleons"(ENSFN)"
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      2012-10-11 – 2012-10-12
    • Invited
  • [Presentation] Grant-In-Aid for Scientific Research on Innovative Areas(B01 part)2012

    • Author(s)
      T. Murakami
    • Organizer
      SAMURAI International Workshop 2012
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2012-10-10 – 2012-10-10
    • Invited
  • [Presentation] Hypernuclear Physics at J-PARC and Study of Neutron Stars with Strangeness2012

    • Author(s)
      H. Tamura
    • Organizer
      The 8th JSPS Core-to-Core Symposium on Strangeness Nuclear Physics
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2012-10-05 – 2012-10-06
    • Invited
  • [Presentation] New experimental plan of Sigma p scattering experiment at J-PARC2012

    • Author(s)
      K. Miwa et al.
    • Organizer
      The 8th JSPS Core-to-Core Symposium on Strangeness Nuclear Physics
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2012-10-05 – 2012-10-06
  • [Presentation] Gamma-ray spectorscopy of hypernuclei2012

    • Author(s)
      H. Tamura
    • Organizer
      11th Int. Conf. on Hypernuclear ans Strange Particle Physics (HYP2012)
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2012-10-01 – 2012-10-05
    • Invited
  • [Presentation] Overview of Hypernuclear Physics Program at K1.8 and K1.1 Beamlines of J-PARC2012

    • Author(s)
      T. Takahashi
    • Organizer
      11th Int. Conf. on Hypernuclear ans Strange Particle Physics (HYP2012)
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2012-10-01 – 2012-10-05
    • Invited
  • [Presentation] Exotic hadrons and hadron-hadron interactions in heavy ion collisions2012

    • Author(s)
      A. Ohnishi et al.
    • Organizer
      11th Int. Conf. on Hypernuclear ans Strange Particle Physics (HYP2012)
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2012-10-01 – 2012-10-05
    • Invited
  • [Presentation] The ASTRO-H X-ray Observatory2012

    • Author(s)
      T. Takahashi
    • Organizer
      X-ray Astronomy for the next 50 years
    • Place of Presentation
      Milano, Italy
    • Year and Date
      2012-10-01 – 2012-10-05
    • Invited
  • [Presentation] Gamma-ray spectorscopy in hypernuclei2012

    • Author(s)
      H. Tamura
    • Organizer
      10th Int. Conf. on Clustering Aspects of Nuclear Structure and Dynamics
    • Place of Presentation
      Debrecen, Hungary
    • Year and Date
      2012-09-24 – 2012-09-28
    • Invited
  • [Presentation] Breakup Reactions of Exotic Nuclei at the large acceptance spectrometer SAMURAI at RIBF2012

    • Author(s)
      T. Nakamura
    • Organizer
      Int. Workshop on Nuclear Symmetry Energy and Reaction Mechanisms
    • Place of Presentation
      Syracuse, Sicily Italy
    • Year and Date
      2012-09-04 – 2012-09-07
    • Invited
  • [Presentation] Lambda particle as a probe of nuclear structure2012

    • Author(s)
      T. Koike
    • Organizer
      VIII TOURS SYMPOSIUM ON NUCLEAR PHYSICS AND ASTROPHYSICS
    • Place of Presentation
      Lenzkirch-Saig, Germany
    • Year and Date
      2012-09-02 – 2012-09-07
    • Invited
  • [Presentation] Coulomb and nuclear breakup of neutron drip line nuclei2012

    • Author(s)
      T. Nakamura
    • Organizer
      Zakopane Conf. on Nuclear Physics
    • Place of Presentation
      Zakopane, Poland
    • Year and Date
      2012-08-27 – 2012-09-02
    • Invited
  • [Presentation] Lambda-Lambda correlation and interaction from heavy-ion collisions2012

    • Author(s)
      A. Ohnishi, T. Furumoto, K. Morita
    • Organizer
      Int. Workshop on Strangeness Nuclear Physics 2012 (SNP2012)
    • Place of Presentation
      Neyagawa, Japan
    • Year and Date
      2012-08-27 – 2012-08-29
    • Invited
  • [Presentation] Hypernuclear γ-ray spectroscopy experiments at J-PARC2012

    • Author(s)
      T. Koike
    • Organizer
      International Workshop on Strangeness Nuclear Physics 2012 (SNP12)
    • Place of Presentation
      Neyagawa, Osaka
    • Year and Date
      2012-08-27 – 2012-08-29
  • [Presentation] Neutron Halo Structure at the Limit of Stability2012

    • Author(s)
      T. Nakamura
    • Organizer
      20th Int. IUPAP Conf. ON FEW-BODY PROBLEMS IN PHYSICS
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      2012-08-20 – 2012-09-25
    • Invited
  • [Presentation] Simulation of neutron-rich dilute nuclear matter using ultracold Fermi gases2012

    • Author(s)
      M. Horikoshi
    • Organizer
      APCTP Focus Program on Quantum Condensation (QC12)
    • Place of Presentation
      Pohang, Korea
    • Year and Date
      2012-08-18 – 2012-08-18
    • Invited
  • [Presentation] The ASTRO-H X-ray Observatory2012

    • Author(s)
      T. Takahashi, K. Mitsuda, R. Kelly and the ASTRO-H collaboration
    • Organizer
      SPIE Astronomical Telescopes and Instrumentation 2012
    • Place of Presentation
      Amsterdam, Netherlands
    • Year and Date
      2012-07-01 – 2012-07-06
    • Invited
  • [Remarks] 実験と観測で解き明かす中性子星の核物質

    • URL

      http://lambda.phys.tohoku.ac.jp/nstar/

URL: 

Published: 2018-02-02  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi