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

2014 Fiscal Year Annual Research Report

高温高密度クォーク物質のQCD臨界点探索

Publicly Offered Research

Project AreaNuclear matter in neutron stars investigated by experiments and astronomical observations
Project/Area Number 25105504
Research InstitutionUniversity of Tsukuba

Principal Investigator

江角 晋一  筑波大学, 数理物質系, 准教授 (10323263)

Project Period (FY) 2013-04-01 – 2015-03-31
Keywords国際研究者交流
Outline of Annual Research Achievements

米国ブルックヘブン国立研究所(BNL)の相対論的重イオン加速器(RHIC)及び、欧州共同原子核研究機構(CERN)の大型ハドロン加速器(LHC)を用いた高エネルギー原子核衝突実(PHENIX実験、STAR実験、ALICE実験)を行い、実験データの解析や、その解析手法、及びその結果に関する議論、相談を行い、共同研究を推進した。
5月にドイツ・ダルムスタットで行われた国際会議「Quark Matter 2014」及び、8月に日本・大阪で行われたアジア重イオン会議「ATHIC 2014」等において、会議場現地で、Prof. Jiangyong Jia氏(Stonybrook大学)、Prof. Fuqiang Wang氏(Purdue大学)、Prof. Nu Xu氏(LBNL研究所、華中師範大学)、益井宙氏(筑波大)、大学院生等と今後の物理データ解析の方針から手法に関して詳細に渡る議論を行った。Event Shape Selectionや、Twist(衝突事象の粒子生成の楕円率や楕円軸を基準とした事象選択を行う、という新たな解析手法を用いたデータ解析の応用)に関する物理的な議論、また2粒子相関法に反応平面法を応用したハード・ソフト間の相関に関する議論、さらに臨界点付近に予測されるゆらぎの発散からの信号観測のためのデータ解析等の議論を直接行う事により、これまでのデータに関する解釈や今後の解析に関する展望、方針を得た。
反応平面を用いた様々な粒子相関の測定を行い、特に量子力学的2粒子HBT相関の測定による反応領域のサイズ、形状の測定、2粒子ジェット相関の反応平面依存性の測定、識別したハドロンや光子の2次(楕円型)、3次(三角型)、4次等の高次方位角異方性の測定、それらの衝突ビームエネルギーや衝突系核種(大きさ)に対する依存性の測定、解析を進め、結果を公表した。

Research Progress Status

26年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

26年度が最終年度であるため、記入しない。

  • Research Products

    (41 results)

All 2015 2014 Other

All Journal Article (9 results) (of which Peer Reviewed: 9 results,  Open Access: 9 results,  Acknowledgement Compliant: 2 results) Presentation (28 results) (of which Invited: 17 results) Remarks (4 results)

  • [Journal Article] Soft physics results from the PHENIX experiment2015

    • Author(s)
      ShinIchi Esumi
    • Journal Title

      PTEP

      Volume: 3 Pages: 03A104

    • DOI

      10.1093/ptep/ptu069

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Blast wave fits to elliptic flow data at sqrt(sNN)=7.7 - 2760 GeV2015

    • Author(s)
      X.Sun, H.Masui, A.M.Poskanzer, and A.Schmah
    • Journal Title

      Phys. Rev.

      Volume: C91 Pages: 024903

    • DOI

      10.1103/PhysRevC.91.024903

    • Peer Reviewed / Open Access
  • [Journal Article] Emission angle and particle mass dependence of HBT radii in Au+Au collisions at √sNN = 200 - 160 GeV2014

    • Author(s)
      ShinIchi Esumi for the PHENIX collaboration
    • Journal Title

      Nucl.Phys.

      Volume: A931 Pages: 1077-1081

    • DOI

      10.1016/j.nuclphysa.2014.08.048

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Azimuthal-angle dependence of charged-pion-interferometry measurements with respect to second- and third-order event planes in Au+Au collisions at √sNN = 200 GeV2014

    • Author(s)
      A.Adare, S.Esumi, J.Jia, T.Niida, et al. (PHENIX collaboration)
    • Journal Title

      Phys.Rev.Lett.

      Volume: 112 Pages: 222301

    • DOI

      10.1103/PhysRevLett.112.222301

    • Peer Reviewed / Open Access
  • [Journal Article] Production of charged pions, kaons and protons at large transverse momenta in pp and Pb-Pb collisions at √sNN = 2.76 TeV2014

    • Author(s)
      B.Abelev, S.Esumi, et al. (ALICE collaboration)
    • Journal Title

      Phys.Lett.

      Volume: B736 Pages: 196-207

    • DOI

      10.1016/j.physletb.2014.07.011

    • Peer Reviewed / Open Access
  • [Journal Article] Transverse-energy distributions at midrapidity in p+p , d+Au , and Au+Au collisions at √sNN = 62.4 - 200 GeV and implications for particle-production models2014

    • Author(s)
      S.S.Adler, S.Esumi, J.Jia, et al. (PHENIX collaboration)
    • Journal Title

      Phys.Rev.

      Volume: C89 Pages: 044905

    • DOI

      10.1103/PhysRevC.89.044905

    • Peer Reviewed / Open Access
  • [Journal Article] Measurement of charged jet suppression in Pb-Pb collisions at √sNN = 2.76 TeV2014

    • Author(s)
      B.Abelev, S. Esumi, et al. (ALICE collaboration)
    • Journal Title

      JHEP

      Volume: 1403 Pages: 013

    • DOI

      10.1007/JHEP03(2014)013

    • Peer Reviewed / Open Access
  • [Journal Article] Energy dependence of moments of net-proton multiplicity distributions at RHIC2014

    • Author(s)
      L. Adamczyk, H.Masui, F.Wang, et al. (STAR collaboration)
    • Journal Title

      Phys. Rev. Lett.

      Volume: 112 Pages: 32302

    • DOI

      10.1103/PhysRevLett.112.032302

    • Peer Reviewed / Open Access
  • [Journal Article] Beam energy dependence of moments of the net-charge multiplicity distributions in Au+Au collisions at RHIC2014

    • Author(s)
      L. Adamczyk, H.Masui, F.Wang, et al. (STAR collaboration)
    • Journal Title

      Phys. Rev. Lett.

      Volume: 113 Pages: 92301

    • DOI

      10.1103/PhysRevLett.113.092301

    • Peer Reviewed / Open Access
  • [Presentation] (1) pT分布、flow、2体相関 (ridge含む) 、3体相関 (2) フロー (粒子相関) とゆらぎ2015

    • Author(s)
      江角晋一
    • Organizer
      チュートリアル研究会「重イオン衝突の物理:基礎から最先端まで」
    • Place of Presentation
      理研、和光市
    • Year and Date
      2015-03-25 – 2015-03-27
    • Invited
  • [Presentation] 筑波大学数理物質融合科学センター クォーク核物質部門の研究2015

    • Author(s)
      江角晋一
    • Organizer
      第1回 筑波大学数理物質融合科学センター (CiRfSE) ワークショップ
    • Place of Presentation
      筑波大学
    • Year and Date
      2015-03-12 – 2015-03-13
    • Invited
  • [Presentation] RHIC Beam Energy Scan2015

    • Author(s)
      Hiroshi Masui
    • Organizer
      Hadrons and Hadron Interactions in QCD 2015: Symposium for QCD phase diagram and heavy ion collisions
    • Place of Presentation
      Yukawa Institute for Theoretical Physics, Kyoto Univ., Japan
    • Year and Date
      2015-03-04 – 2015-03-04
    • Invited
  • [Presentation] Recent flow results at RHIC2015

    • Author(s)
      Hiroshi Masui
    • Organizer
      Flow and heavy flavour workshop in high energy heavy ion collisions: GRN workshop
    • Place of Presentation
      Inchon, Korea
    • Year and Date
      2015-02-24 – 2015-02-26
    • Invited
  • [Presentation] Recent results with photons and jets at RHIC and sPHENIX upgrade including pre-shower detector2014

    • Author(s)
      ShinIchi Esumi
    • Organizer
      Korea-Japan collaboration meeting
    • Place of Presentation
      Riken, Wako
    • Year and Date
      2014-11-28 – 2014-11-28
    • Invited
  • [Presentation] Recent flow/correlation results and future plans at PHENIX2014

    • Author(s)
      ShinIchi Esumi
    • Organizer
      HIM-10
    • Place of Presentation
      Yonsei Univ, Seoul, Korea
    • Year and Date
      2014-11-01 – 2014-11-01
    • Invited
  • [Presentation] Recent measurements of azimuthal anisotropy vn in heavy ion collisions2014

    • Author(s)
      Takahito Todoroki
    • Organizer
      KMI Mini-Workshop 2014 "Fluctuations, collectivity and correlations at RHIC and LHC"
    • Place of Presentation
      Nagoya Univ.
    • Year and Date
      2014-10-23 – 2014-10-23
    • Invited
  • [Presentation] Study of Hot QCD matter at RHIC and LHC2014

    • Author(s)
      ShinIchi Esumi
    • Organizer
      Fourth Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan
    • Place of Presentation
      Hawaii, USA
    • Year and Date
      2014-10-07 – 2014-10-11
    • Invited
  • [Presentation] Beam Energy Scan at RHIC2014

    • Author(s)
      Hiroshi Masui
    • Organizer
      4th joint meeting of APS-DNP and JPS
    • Place of Presentation
      Hawaii, USA
    • Year and Date
      2014-10-07 – 2014-10-11
    • Invited
  • [Presentation] Flow Measurements at the RHIC and LHC, What Have We Learned? What is Needed?2014

    • Author(s)
      Takahito Todoroki
    • Organizer
      4th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
    • Place of Presentation
      Hawaii, USA
    • Year and Date
      2014-10-07 – 2014-10-11
    • Invited
  • [Presentation] Measurement Of Direct Photon Collective flow In sqrt(sNN)=200GeV AuAu Collisions at RHIC-PHENiX experiment2014

    • Author(s)
      Sanshiro Mizuno
    • Organizer
      Tsukuba Global Science Week (TGSW2014)
    • Place of Presentation
      Univ. of Tsukuba
    • Year and Date
      2014-09-29 – 2014-09-29
  • [Presentation] 高エネルギー重イオン衝突実験の物理2014

    • Author(s)
      江角晋一
    • Organizer
      中性子星核物質 第3回研究会
    • Place of Presentation
      静岡県賀茂郡東伊豆町 熱川温泉 熱川ハイツ
    • Year and Date
      2014-09-23 – 2014-09-25
  • [Presentation] Elliptic flow for multi-strange hadrons as penetrating probes at RHIC2014

    • Author(s)
      Hiroshi Masui
    • Organizer
      High Energy Strong Interactions: A school for Young Asian Scientists
    • Place of Presentation
      Wuhan, China
    • Year and Date
      2014-09-22 – 2014-09-24
    • Invited
  • [Presentation] Measurement Of Direct Photon Azimuthal Anisotropy In Au+Au sqrt(sNN)=200GeV Collisions at RHIC-PHENIX experiment2014

    • Author(s)
      Sanshiro Mizuno
    • Organizer
      High Energy Strong Interactions: A School for Young Asian Scientists
    • Place of Presentation
      Wuhan, China
    • Year and Date
      2014-09-22 – 2014-09-24
  • [Presentation] Final source eccentricity measured by HBT interferometry with the event shape selection2014

    • Author(s)
      Takafumi Niida
    • Organizer
      Hot Quarks 2014
    • Place of Presentation
      Las Negras, Spain
    • Year and Date
      2014-09-21 – 2014-09-28
  • [Presentation] Event geometrical anisotropy and fluctuation viewed by HBT interferometry2014

    • Author(s)
      Takafumi Niida
    • Organizer
      Xth Workshop on Particle Correlation and Femtoscopy (WPCF2014)
    • Place of Presentation
      Gyongyos, Hungary
    • Year and Date
      2014-08-25 – 2014-08-29
    • Invited
  • [Presentation] Measurement Of Direct Photon 3rd Order Azimuthal Anisotropy In Au+Au collisions At sqrt(sNN)=200GeV at RHIC-PHENIX experiment2014

    • Author(s)
      Sanshiro Mizuno
    • Organizer
      Xth Workshop on Particle Correlation and Femtoscopy (WPCF2014)
    • Place of Presentation
      Gyongyos, Hungary
    • Year and Date
      2014-08-25 – 2014-08-29
  • [Presentation] Experimental results from RHIC2014

    • Author(s)
      ShinIchi Esumi
    • Organizer
      The 5th Asian Heavy Ion Conference (ATHIC2014)
    • Place of Presentation
      Osaka Univ.
    • Year and Date
      2014-08-05 – 2014-08-08
    • Invited
  • [Presentation] Future perspectives of the ALICE experiment and detector upgrade2014

    • Author(s)
      Hiroshi Masui
    • Organizer
      The 5th Asian Triangle Heavy Ion Conference 2014 (ATHIC2014)
    • Place of Presentation
      Osaka Univ.
    • Year and Date
      2014-08-05 – 2014-08-08
    • Invited
  • [Presentation] Measurement Of Direct Photon Collective Flow In Au+Au sqrt(sNN)=200GeV collisions at RHIC-PHENiX experiment2014

    • Author(s)
      Sanshiro Mizuno
    • Organizer
      The 5th Asian Triangle Heavy Ion Conference 2014 (ATHIC2014)
    • Place of Presentation
      Osaka Univ.
    • Year and Date
      2014-08-05 – 2014-08-08
  • [Presentation] Event shape dependence of jet correlations at RHIC2014

    • Author(s)
      Takahito Todoroki
    • Organizer
      26th Heavy Ion Cafe
    • Place of Presentation
      Univ. of Tokyo
    • Year and Date
      2014-07-19 – 2014-07-19
    • Invited
  • [Presentation] Two-particle correlation and HBT measurements in d+Au collisions at PHENIX2014

    • Author(s)
      Takahito Todoroki
    • Organizer
      RHIC&AGS Users meeting
    • Place of Presentation
      BNL, New York, USA
    • Year and Date
      2014-06-17 – 2014-06-20
  • [Presentation] Selected high-lights from QM20142014

    • Author(s)
      ShinIchi Esumi
    • Organizer
      Heavy-Ion Cafe (25th) / Pub (19th)
    • Place of Presentation
      Nagoya Univ.
    • Year and Date
      2014-06-06 – 2014-06-06
    • Invited
  • [Presentation] Emission angle and particle mass dependence of HBT interferometry in Au+Au collisions at √sNN = 200 GeV2014

    • Author(s)
      ShinIchi Esumi
    • Organizer
      Quark Matter 2014
    • Place of Presentation
      Darmstadt, Germany
    • Year and Date
      2014-05-19 – 2014-05-24
  • [Presentation] Centrality Dependence Of Soft Photon Production and Its Collective Flow in Au+Au Collisions at sqrt(sNN)=200GeV2014

    • Author(s)
      Sanshiro Mizuno
    • Organizer
      Quark Matter 2014
    • Place of Presentation
      Darmstadt, Germany
    • Year and Date
      2014-05-19 – 2014-05-24
  • [Presentation] Flow in Cu+Au collisions and unique tests of 3D medium evolution2014

    • Author(s)
      Hiroshi Nakagomi
    • Organizer
      Quark Matter 2014
    • Place of Presentation
      Darmstadt, Germany
    • Year and Date
      2014-05-19 – 2014-05-24
  • [Presentation] Jet, flow and correlation in pA and dA2014

    • Author(s)
      ShinIchi Esumi
    • Organizer
      Heavy Ion Cafe (24th)
    • Place of Presentation
      Univ. of Tokyo
    • Year and Date
      2014-04-12 – 2014-04-12
    • Invited
  • [Presentation] HBT with respect to 2nd and 3rd order event planes in 200 GeV Au+Au collisions2014

    • Author(s)
      Takafumi Niida
    • Organizer
      The 30th Winter Workshop on Nuclear Dynamics (WWND2014)
    • Place of Presentation
      Galveston, Texas, USA
    • Year and Date
      2014-04-06 – 2014-04-12
  • [Remarks] 筑波大学数理物質融合科学センター 「クォーク・核物質研究部門」

    • URL

      http://utkhii.px.tsukuba.ac.jp/~esumi/cirfse/QuarkNuclear.html

  • [Remarks] 筑波大学数理物質融合科学センター 「宇宙史国際研究拠点」

    • URL

      http://hep.px.tsukuba.ac.jp/~skim/RCHOU/hou.html

  • [Remarks] 筑波大学数理物質融合科学センター ホームページ

    • URL

      http://www.pas.tsukuba.ac.jp/~CiRfSE/index.html

  • [Remarks] 筑波大学 高エネルギー原子核実験グループ

    • URL

      http://utkhii.px.tsukuba.ac.jp/

URL: 

Published: 2016-06-01  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi