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Studies of baryons and dibaryons with J-PARC high-intensity meson beams and a TPC detector

Research Project

Project/Area Number 18H03706
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 15:Particle-, nuclear-, astro-physics, and related fields
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

Sako Hiroyuki  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 原子力科学研究所 先端基礎研究センター, 研究主幹 (40282298)

Co-Investigator(Kenkyū-buntansha) 市川 裕大  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 原子力科学研究所 先端基礎研究センター, 研究職 (50756244)
Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥43,810,000 (Direct Cost: ¥33,700,000、Indirect Cost: ¥10,110,000)
Fiscal Year 2022: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2021: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2020: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2019: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
Fiscal Year 2018: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
KeywordsJ-PARC / バリオン / ダイバリオン / Hダイバリオン / バリオン共鳴 / TPC
Outline of Final Research Achievements

On H-dibaryon search experiment (E42), we carried out the experiment in May-June, 2021, and collected 170 billion (K+,K-) reaction events in total. We proceed with the calibration of detectors such as the TPC, and Kaon identification and momentum reconstruction with the Kurama Spectrometer and the Hyperon Spectrometer.
On the N* spectroscopy experiment (E45), we established a new organization with the co-spokespersons, H. Sako (PI of this Kakenhi program), and P. Cole (Lamar Univ.) . Aiming at the experiment in 2025, we proceed with the detector preparation and development of partial wave analysis software with theoretical researcher in USA, and complete most of the preparation.

Academic Significance and Societal Importance of the Research Achievements

Hダイバリオンはuuddssクォークから構成されるフレーバー一重項の安定な6クォーク状態と考えられており、本実験によりその存否に最終決着をつけることはハドロン研究分野についてきわめて重要なインパクトを与えると期待できる。実験は2021年に無事終了し、解析が進んでおり、今後この問題に決着をつけることが期待される。また、N*分光実験(E45)は質量2GeV以下のN*スペクトルの完全解明のために極めて重要な実験である。本研究期間に実験の準備がほぼ終了し、2025年の実験で成果が得られることが期待される。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (19 results)

All 2023 2022 2021 2020 2019 2018 Other

All Int'l Joint Research (6 results) Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 4 results,  Invited: 5 results)

  • [Int'l Joint Research] Korea University(韓国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Lamar University/University of Connecticut/Argonne National Laboratory(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Lamar University/University of Connecticut/Ohio University(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Korea University(韓国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] コリア大学(韓国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] オハイオ大学(米国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Superconducting dipole magnet for Hyperon spectrometer2023

    • Author(s)
      Ahn J.K.、Choi S.、Hasegawa S.、Hayakawa S.H.、Hong J.、Ichikawa Y.、Imai K.、Kim S.H.、Makida Y.、Ohhata H.、Sako H.、Sasaki K.、Sato S.、Takahashi T.、Tanida K.、Yoshida J.
    • Journal Title

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

      Volume: 1047 Pages: 167775-167775

    • DOI

      10.1016/j.nima.2022.167775

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Time Projection Chamber “HypTPC” for the Hadron Spectroscopy at J-PARC2021

    • Author(s)
      Y. Ichikawa et al.
    • Journal Title

      JPS Conf. Proc.

      Volume: 33 Pages: 011103-011103

    • DOI

      10.7566/jpscp.33.011103

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Development of a time projection chamber for J-PARC hadron physics program2020

    • Author(s)
      Kim Shin Hyung、Ichikawa Yudai、Sako Hiroyuki、Ahn Jung Keun、J-PARC E42/45/72 Collaboration
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 1498 Issue: 1 Pages: 012023-012023

    • DOI

      10.1088/1742-6596/1498/1/012023

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Possibility of a new narrow Λ* resonance near the Λη threshold2019

    • Author(s)
      Kiyoshi Tanida
    • Journal Title

      AIP conf. Proc.

      Volume: 2130 Pages: 040019-040019

    • DOI

      10.1063/1.5118416

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of TPC Trigger Hodoscope for J-PARC E42/E45 Hadron Experiment2019

    • Author(s)
      Jung Wooseung、Ahn Jung keun、Hasegawa Shoichi、Hicks Kenneth、Hwang Sanghoon、Ichikawa Yudai、Kim Shinhyung、Sako Hiroyuki、Sato Susumu、Tanida Kiyoshi
    • Journal Title

      JPS Conf. Proc.

      Volume: 27 Pages: 011007-011007

    • DOI

      10.7566/jpscp.27.011007

    • Related Report
      2019 Annual Research Report
  • [Journal Article] GEM based TPC for the high intensity beam at J-PARC2018

    • Author(s)
      Kim Shin Hyung、Ahn Jung Keun、Sako Hiroyuki、Ichikawa Yudai、Sugimura Hitoshi
    • Journal Title

      PoS

      Volume: Hadron2017 Pages: 221-221

    • DOI

      10.22323/1.310.0221

    • Related Report
      2018 Annual Research Report
  • [Presentation] Studies of baryon resonances with meson beams at J-PARC -J-PARC E45 and E72-2022

    • Author(s)
      Hiroyuki Sako
    • Organizer
      APCTP Workshop on Nuclear Physics 2022, Jeju, Korea
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Baryon spectroscopy with Hyp-TPC at J-PARC2022

    • Author(s)
      Kiyoshi Tanida
    • Organizer
      The 13th International Workshop on the Physics of Excited Nucleons (NSTAR2022), Jenoa, Italy
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Time Projection Chamber "HypTPC" for the hadron spectroscopy at J-PARC2019

    • Author(s)
      Yudai Ichikawa
    • Organizer
      J-PARC symposium 2019, Tsukuba, Japan
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Experiments at J-PARC with the new HypTPC detector2019

    • Author(s)
      Kiyoshi Tanida
    • Organizer
      Reimei Symposium on Synergies in Hadron Physics between J-PARC and JLab
    • Related Report
      2019 Annual Research Report
  • [Presentation] Experimental and Theoretical Hadron Physics, Programs with HypTPC2019

    • Author(s)
      Yudai Ichikawa
    • Organizer
      the 52nd Reimei Workshop “Experimental and Theoretical Hadron Physics: Recent Exciting Developments”, Tokai, Japan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] J-PARC E42/45実験のためのMPPCを用いた高時間分解能検出器の開発(2)2019

    • Author(s)
      市川裕大
    • Organizer
      日本物理学会74回年次大会(九州大学、福岡市)
    • Related Report
      2018 Annual Research Report
  • [Presentation] J-PARC E45の物理と展望2019

    • Author(s)
      佐甲博之
    • Organizer
      RCNP研究会「ガンマ線ビームを用いた原子核・ハドロン物理の新局面と今後の展望」、大阪大学、茨木市
    • Related Report
      2018 Annual Research Report
    • Invited

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Published: 2018-04-23   Modified: 2024-01-30  

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