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2017 Fiscal Year Annual Research Report

Second step to reveal deconfined quark behavior in nucleus-nucleus collisions at ultimate energies: selective measurement of hard scattering phenomena

Research Project

Project/Area Number 15H03664
Research InstitutionHiroshima University

Principal Investigator

志垣 賢太  広島大学, 理学研究科, 准教授 (70354743)

Project Period (FY) 2015-04-01 – 2019-03-31
Keywordsパートン多体系 / 高エネルギー原子核衝突 / 解放クォーク挙動 / クォーク間相互作用 / 宇宙創成
Outline of Annual Research Achievements

極致エネルギー原子核衝突実験 LHC-ALICE 第二期において、実験クォーク物理学の本来課題である高温パートン相中の解放クォークの挙動解明に向け、焦眉の未解決課題 3 点を決着させる。ALICE 実験第一期において、次期最重要課題として、クォークの初期エネルギー確定、損失エネルギーの再分配過程、クォーク挙動のフレーバ依存性を提示した。本研究では、この 3 点の課題決着により、「ホップ、ステップ、ジャンプ」の「ステップ」にあたる第二段階の跳躍を達成し、更に検出器高度化を含む第三段階の高精度測定への道筋を確立する。
(1) 鉛原子核+鉛原子核、陽子+鉛原子核、陽子+陽子衝突実験および物理解析: LHC-ALICE 実験を継続して推進し、極致エネルギーにおける陽子+陽子衝突の高品質データを収集した。収集済の鉛原子核+鉛原子核、陽子+鉛原子核衝突を含め、硬散乱課程からの光子、中性中間子、ジェット、電子の測定解析を推進した。
(2) クォークの初期エネルギー確定によるエネルギー損失の定量化: 個々の散乱クォークの初期エネルギー確定に向けた新規測定として、光子-ジェット相関測定を推進した。
(3) 損失エネルギーの散逸と再分配過程の究明: 鉛原子核+鉛原子核衝突における陽子+陽子衝突からの変位を用いてクォークのエネルギー損失の情報抽出を進めるとともに、ジェット抑制に引続き発生する損失エネルギーの散逸を観測して、損失エネルギーの再分配先の定量的解明を進めた。
(4) 軽いクォークから重いクォークまでのフレーバ依存性測定: 高横運動量電子および前方ミューオン測定の併用により、チャームおよびボトム・クォークまでを含む中間子の系統測定を進めた。
(5) 解放クォーク挙動のフレーバ依存性解明に向けた切札として、前方ミューオン検出器高度化を推進した。本研究代表者が制御系責任者を務めている。

Current Status of Research Progress
Current Status of Research Progress

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

Reason

ALICE 実験において LHC 加速器設計衝突エネルギーに迫る 13 TeV での陽子+陽子衝突実験を順調に遂行し、鉛原子核+鉛原子核衝突に対する基準測定となる、硬散乱課程からの光子、中性中間子、電子の高統計データを収集した。高精度光子検出器による高横運動量光子と電子の選択測定に加え、ジェット対検出器によるジェット・トリガを併用した、硬散乱事象からの光子、ジェット、電子およびこれらの相関の高精度データ収集も順調に稼働した。
硬散乱事象選択トリガを用いて収集した陽子+陽子衝突データによる、高横運動量領域における中性中間子生成の精査を順調に進展させた。異種中間子間のスケーリング則(またはその破れ)から極致エネルギーにおける粒子生成機構の解明を明らかにすべく、原子核衝突における新規現象理解に必要な基盤を精度よく確立し、学術論文として投稿した。
解放クォーク挙動のフレーバ依存性解明に向けた切札として、前方ミューオン検出器高度化の平成 31 年度導入に向けて、同検出器制御系の責任機関として開発建設を進めている。本研究代表者は制御供給作業要素共同座長として、また平成 30 年度の検出器高度化国際検討会の広島招致実現など、国際共同研究における存在を更に固めている。

Strategy for Future Research Activity

(1) 鉛原子核+鉛原子核、陽子+鉛原子核、陽子+陽子衝突実験および物理解析: LHC-ALICE 実験を継続して推進し、極致エネルギーにおける鉛原子核+鉛原子核衝突および基準測定となる陽子+陽子、陽子+鉛原子核衝突の高品質データを用いた物理解析を引続き牽引する。
(2) クォークのエネルギー損失定量化および損失エネルギーの散逸と再分配過程の究明: 高横運動量光子トリガを用いた光子-ジェット相関測定により、クォークの初期エネルギーと損失後エネルギーとの同時測定から、クォーク間相互作用機構の詳細な物理議論を可能とする。鉛原子核+鉛原子核衝突における高横運動量の光子およびジェットの収量測定から、陽子+陽子衝突からの変位を用いてクォークのエネルギー損失の情報を抽出する。同時に、ジェット抑制に引続き発生する損失エネルギーの散逸観測により、損失エネルギーの再分配先を定量的に明らかにする。
(3) 軽いクォークから重いクォークまでのフレーバ依存性測定: LHC 加速器の高い衝突エネルギーを利用し、チャームおよびボトム・クォークまでを含む中間子の系統測定から、重いクォークのエネルギー損失と再分配を軽いクォークと同様に明らかにする。
(4) 前方ミューオン検出器高度化: 解放クォーク挙動のフレーバ依存性解明の切札として、前方ミューオン検出器高度化の平成 31 年度導入に向けて、検出器制御を中心とした開発研究を推進し、ALICE 実験第三期における高輝度高統計精密測定に向けた準備を完了する。
(5) 解放クォークの挙動とクォーク間相互作用の機構解明: 光子を軸とした硬散乱事象の包括的選択測定の物理成果を纏め、物理理解に至る。LHC 加速器のエネルギー領域における高温クォーク相と解放クォークの性質を明らかにし、本分野の今後の研究展開に先導的な役割を果たす。

  • Research Products

    (54 results)

All 2018 2017 Other

All Int'l Joint Research (6 results) Journal Article (42 results) (of which Int'l Joint Research: 42 results,  Peer Reviewed: 42 results,  Open Access: 33 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 4 results) Remarks (1 results)

  • [Int'l Joint Research] CERN 研究所(スイス)

    • Country Name
      SWITZERLAND
    • Counterpart Institution
      CERN 研究所
  • [Int'l Joint Research] Subatech 研究所/リヨン大学/サクレー研究所(フランス)

    • Country Name
      FRANCE
    • Counterpart Institution
      Subatech 研究所/リヨン大学/サクレー研究所
    • # of Other Institutions
      5
  • [Int'l Joint Research] INFN バリ研究所/INFN パドバ研究所/INFN フラスカティ研究所(イタリア)

    • Country Name
      ITALY
    • Counterpart Institution
      INFN バリ研究所/INFN パドバ研究所/INFN フラスカティ研究所
    • # of Other Institutions
      14
  • [Int'l Joint Research] GSI 研究所/ハイデルベルク大学/フランクフルト大学(ドイツ)

    • Country Name
      GERMANY
    • Counterpart Institution
      GSI 研究所/ハイデルベルク大学/フランクフルト大学
    • # of Other Institutions
      10
  • [Int'l Joint Research] ブルックヘブン国立研究所/ローレンスバークレー国立研究所/カリフォルニア大学バークレー校(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      ブルックヘブン国立研究所/ローレンスバークレー国立研究所/カリフォルニア大学バークレー校
    • # of Other Institutions
      36
  • [Int'l Joint Research]

    • # of Other Countries
      35
  • [Journal Article] Production of 4He and 4Hebar in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV at the LHC2018

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Nuclear Physics A

      Volume: 971 Pages: 1-20

    • DOI

      https://doi.org/10.1016/j.nuclphysa.2017.12.004

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Production of deuterons, tritons, He3 nuclei, and their antinuclei in pp collisions at sqrt(s) = 0.9, 2.76, and 7 TeV2018

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physical Review C

      Volume: 97 Pages: 024615

    • DOI

      https://doi.org/10.1103/PhysRevC.97.024615

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Constraining the magnitude of the Chiral Magnetic Effect with Event Shape Engineering in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV2018

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physics Letters B

      Volume: 777 Pages: 151-162

    • DOI

      https://doi.org/10.1016/j.physletb.2017.12.021

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The ALICE Transition Radiation Detector: Construction, operation, and performance2018

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

      Volume: 881 Pages: 88-127

    • DOI

      https://doi.org/10.1016/j.nima.2017.09.028

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Systematic studies of correlations between different order flow harmonics in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV2018

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physical Review C

      Volume: 97 Pages: 024906

    • DOI

      https://doi.org/10.1103/PhysRevC.97.024906

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] pi0 and eta meson production in proton-proton collisions at sqrt(s) = 8 TeV2018

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      The European Physical Journal C

      Volume: 78 Pages: 263

    • DOI

      https://doi.org/10.1140/epjc/s10052-018-5612-8

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] D-Meson Azimuthal Anisotropy in Midcentral Pb-Pb Collisions at sqrt(sNN) = 5.02 TeV2018

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physical Review Letters

      Volume: 120 Pages: 102301

    • DOI

      https://doi.org/10.1103/PhysRevLett.120.102301

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] J/psi production as a function of charged-particle pseudorapidity density in p-Pb collisions at sqrt(sNN) = 5.02 TeV2018

    • Author(s)
      D.Adamov, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physics Letters B

      Volume: 776 Pages: 91-104

    • DOI

      https://doi.org/10.1016/j.physletb.2017.11.008

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First measurement of jet mass in Pb-Pb and p-Pb collisions at the LHC2018

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physics Letters B

      Volume: 776 Pages: 249-264

    • DOI

      https://doi.org/10.1016/j.physletb.2017.11.044

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Measurements of Multiparticle Correlations in d+Au Collisions at 200, 62.4, 39, and 19.6 GeV and p+Au Collisions at 200 GeV and Implications for Collective Behavior2018

    • Author(s)
      C.Aidala, K.Shigaki, et al. (PHENIX Collaboration)
    • Journal Title

      Physical Review Letters

      Volume: 120 Pages: 062302

    • DOI

      https://doi.org/10.1103/PhysRevLett.120.062302

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Nuclear Dependence of the Transverse-Single-Spin Asymmetry for Forward Neutron Production in Polarized p+A Collisions at sqrt(sNN) = 200 GeV2018

    • Author(s)
      C.Aidala, K.Shigaki, et al. (PHENIX Collaboration)
    • Journal Title

      Physical Review Letters

      Volume: 120 Pages: 022001

    • DOI

      https://doi.org/10.1103/PhysRevLett.120.022001

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] J/psi Elliptic Flow in Pb-Pb Collisions at sqrt(sNN) = 5.02 TeV2017

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physical Review Letters

      Volume: 119 Pages: 242301

    • DOI

      https://doi.org/10.1103/PhysRevLett.119.242301

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Kaon femtoscopy in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV2017

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physical Review C

      Volume: 96 Pages: 064613

    • DOI

      https://doi.org/10.1103/PhysRevC.96.064613

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Charged-particle multiplicity distributions over a wide pseudorapidity range in proton-proton collisions at sqrt(s) = 0.9, 7, and 8 TeV2017

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      The European Physical Journal C

      Volume: 77 Pages: 852

    • DOI

      https://doi.org/10.1140/epjc/s10052-017-5412-6

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Measurement of deuteron spectra and elliptic flow in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV at the LHC2017

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      The European Physical Journal C

      Volume: 77 Pages: 658

    • DOI

      https://doi.org/10.1140/epjc/s10052-017-5222-x

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Searches for transverse momentum dependent flow vector fluctuations in Pb-Pb and p-Pb collisions at the LHC2017

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Journal of High Energy Physics

      Volume: 2017 Pages: 32

    • DOI

      https://doi.org/10.1007/JHEP09(2017)032

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Measuring KS0 Kpm interactions using Pb-Pb collisions at sqrt(sNN) = 2.76 TeV2017

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physics Letters B

      Volume: 774 Pages: 64-77

    • DOI

      https://doi.org/10.1016/j.physletb.2017.09.009

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Linear and non-linear flow mode in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV2017

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physics Letters B

      Volume: 773 Pages: 68-80

    • DOI

      https://doi.org/10.1016/j.physletb.2017.07.060

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Flow Dominance and Factorization of Transverse Momentum Correlations in Pb-Pb Collisions at the LHC2017

    • Author(s)
      J.Adam, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physical Review Letters

      Volume: 118 Pages: 162302

    • DOI

      https://doi.org/10.1103/PhysRevLett.118.162302

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Azimuthally Differential Pion Femtoscopy in Pb-Pb Collisions at sqrt(sNN) = 2.76 TeV2017

    • Author(s)
      D.Adamov, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physical Review Letters

      Volume: 118 Pages: 222301

    • DOI

      https://doi.org/10.1103/PhysRevLett.118.222301

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Production of muons from heavy-flavour hadron decays in p-Pb collisions at sqrt(sNN) = 5.02 TeV2017

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physics Letters B

      Volume: 770 Pages: 459-472

    • DOI

      https://doi.org/10.1016/j.physletb.2017.03.049

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Production of pi0 and eta mesons up to high transverse momentum in pp collisions at 2.76 TeV2017

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      The European Physical Journal C

      Volume: 77 Pages: 339

    • DOI

      https://doi.org/10.1140/epjc/s10052-017-4890-x

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Measurement of D-meson production at mid-rapidity in pp collisions at sqrt(s) = 7 TeV2017

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      The European Physical Journal C

      Volume: 77 Pages: 550

    • DOI

      https://doi.org/10.1140/epjc/s10052-017-5090-4

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Energy dependence of forward-rapidity J/psi and psi(2S) production in pp collisions at the LHC2017

    • Author(s)
      S.Acharya, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      The European Physical Journal C

      Volume: 77 Pages: 392

    • DOI

      https://doi.org/10.1140/epjc/s10052-017-4940-4

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] K*(892)0 and phi(1020) meson production at high transverse momentum in pp and Pb-Pb collisions at sqrt(sNN) = 2.76 TeV2017

    • Author(s)
      J.Adam, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physical Review C

      Volume: 95 Pages: 064606

    • DOI

      https://doi.org/10.1103/PhysRevC.95.064606

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Production of Sigma(1385)pm Xi(1530)0 in p-Pb collisions at sqrt(sNN) = 5.02 TeV2017

    • Author(s)
      D.Adamov, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      The European Physical Journal C

      Volume: 77 Pages: 389

    • DOI

      https://doi.org/10.1140/epjc/s10052-017-4943-1

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at sqrt(s) = 7 TeV2017

    • Author(s)
      J.Adam, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      The European Physical Journal C

      Volume: 77 Pages: 569

    • DOI

      https://doi.org/10.1140/epjc/s10052-017-5129-6

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Centrality dependence of the pseudorapidity density distribution for charged particles in Pb-Pb collisions at sqrt(sNN) = 5.02 TeV2017

    • Author(s)
      J.Adam, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physics Letters B

      Volume: 772 Pages: 567-577

    • DOI

      https://doi.org/10.1016/j.physletb.2017.07.017

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Measurement of the production of high-pT electrons from heavy-flavour hadron decays in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV2017

    • Author(s)
      J.Adam, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physics Letters B

      Volume: 771 Pages: 467-481

    • DOI

      https://doi.org/10.1016/j.physletb.2017.05.060

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Evolution of the longitudinal and azimuthal structure of the near-side jet peak in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV2017

    • Author(s)
      J.Adam, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physical Review C

      Volume: 96 Pages: 034904

    • DOI

      https://doi.org/10.1103/PhysRevC.96.034904

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Anomalous Evolution of the Near-Side Jet Peak Shape in Pb-Pb Collisions at sqrt(sNN) = 2.76 TeV2017

    • Author(s)
      J.Adam, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physical Review Letters

      Volume: 119 Pages: 102301

    • DOI

      https://doi.org/10.1103/PhysRevLett.119.102301

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Measurement of electrons from beauty-hadron decays in p-Pb collisions at sqrt(sNN) = 5.02 TeV and Pb-Pb collisions at sqrt(sNN) = 2.76 TeV2017

    • Author(s)
      J.Adam, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Journal of High Energy Physics

      Volume: 2017 Pages: 52

    • DOI

      https://doi.org/10.1007/JHEP07(2017)052

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Enhanced production of multi-strange hadrons in high-multiplicity proton-proton collisions2017

    • Author(s)
      J.Adam, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Nature Physics

      Volume: 13 Pages: 535-539

    • DOI

      https://doi.org/10.1038/nphys4111

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Measurement of azimuthal correlations of D mesons with charged particles in pp collisions at sqrt(s) = 7 TeV and p-Pb collisions at sqrt(sNN) = 5.02 TeV2017

    • Author(s)
      J.Adam, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      The European Physical Journal C

      Volume: 77 Pages: 245

    • DOI

      https://doi.org/10.1140/epjc/s10052-017-4779-8

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] phi meson production at forward rapidity in p-Pb collisions at sqrt(sNN) = 5.02 TeV and in pp collisions at sqrt(s) = 2.76 TeV2017

    • Author(s)
      J.Adam, K.Shigaki, et al. (ALICE Collaboration)
    • Journal Title

      Physics Letters B

      Volume: 768 Pages: 203-217

    • DOI

      https://doi.org/10.1016/j.physletb.2017.01.074

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Measurements of azimuthal anisotropy and charged-particle multiplicity in d+Au collisions at sqrt(sNN) = 200, 62.4, 39, and 19.6 GeV2017

    • Author(s)
      C.Aidala, K.Shigaki, et al. (PHENIX Collaboration)
    • Journal Title

      Physical Review C

      Volume: 96 Pages: 064905

    • DOI

      https://doi.org/10.1103/PhysRevC.96.064905

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Cross section and transverse single-spin asymmetry of muons from open heavy-flavor decays in polarized p+p collisions at sqrt(s) = 200 GeV2017

    • Author(s)
      C.Aidala, K.Shigaki, et al. (PHENIX Collaboration)
    • Journal Title

      Physical Review D

      Volume: 95 Pages: 112001

    • DOI

      https://doi.org/10.1103/PhysRevD.95.112001

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] B-meson production at forward and backward rapidity in p+p and Cu+Au collisions at sqrt(sNN) = 200 GeV2017

    • Author(s)
      C.Aidala, K.Shigaki, et al. (PHENIX Collaboration)
    • Journal Title

      Physical Review C

      Volume: 96 Pages: 064901

    • DOI

      https://doi.org/10.1103/PhysRevC.96.064901

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Measurements of e+e- pairs from open heavy flavor in p+p and d+A collisions at sqrt(sNN) = 200 GeV2017

    • Author(s)
      A.Adare, K.Shigaki, et al. (PHENIX Collaboration)
    • Journal Title

      Physical Review C

      Volume: 96 Pages: 024907

    • DOI

      https://doi.org/10.1103/PhysRevC.96.024907

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Measurements of B → J/psi at forward rapidity in p+p collisions at sqrt(s) = 510 GeV2017

    • Author(s)
      C.Aidala, K.Shigaki, et al. (PHENIX Collaboration)
    • Journal Title

      Physical Review D

      Volume: 95 Pages: 092002

    • DOI

      https://doi.org/10.1103/PhysRevD.95.092002

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Angular decay coefficients of J/psi mesons at forward rapidity from p+p collisions at sqrt(s) = 510 GeV2017

    • Author(s)
      A.Adare, K.Shigaki, et al. (PHENIX Collaboration)
    • Journal Title

      Physical Review D

      Volume: 95 Pages: 092003

    • DOI

      https://doi.org/10.1103/PhysRevD.95.092003

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photon-hadron angular correlations in p+p collisions at sqrt(s) = 510 GeV2017

    • Author(s)
      A.Adare, K.Shigaki, et al. (PHENIX Collaboration)
    • Journal Title

      Physical Review D

      Volume: 95 Pages: 072002

    • DOI

      https://doi.org/10.1103/PhysRevD.95.072002

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Heavy ion collisions and challenges to access extreme conditions2018

    • Author(s)
      K.Shigaki
    • Organizer
      Seminar, CEA Saclay, IRFU, Nuclear Physics Division
    • Int'l Joint Research / Invited
  • [Presentation] クォーク層とハドロン層を結ぶ動的機構2018

    • Author(s)
      志垣賢太
    • Organizer
      量子クラスターで読み解く物質の階層構造
    • Invited
  • [Presentation] Phyiscs of quark matter and challenges to access extreme conditions2017

    • Author(s)
      K.Shigaki
    • Organizer
      Seminar, Taiwan National Central University, Department of Physics
    • Int'l Joint Research / Invited
  • [Presentation] 高エネルギー原子核衝突実験研究の基礎、話題、展望2017

    • Author(s)
      志垣賢太
    • Organizer
      大阪大学原子核理論研究室セミナー
    • Invited
  • [Presentation] 高エネルギー原子核衝突によるクォーク・グルーオン・プラズマ研究2017

    • Author(s)
      志垣賢太
    • Organizer
      クォークから原子核、原子へと広がる物理
  • [Remarks] LHC ALICE 実験 - ALICE Japan -

    • URL

      http://alice-j.org/

URL: 

Published: 2019-12-27  

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