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Study of meson mass origin by simultaneous measurements of production of omega bound states and its decays

Research Project

Project/Area Number 20684008
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionThe University of Tokyo

Principal Investigator

OZAWA Kyoichiro  The University of Tokyo, 大学院・理学系研究科, 講師 (20323496)

Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥22,750,000 (Direct Cost: ¥17,500,000、Indirect Cost: ¥5,250,000)
Fiscal Year 2010: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2009: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2008: ¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Keywords原子核(実験) / ハドロン質量の起源 / カイラル対称性 / ω中間子 / J-PARC / 中性子検出器 / γ線検出器 / 原子核実験
Research Abstract

Hadrons, such as proton or meson, consists of quarks. It is known that hadrons have larger mass than sum of quark mass. In this study, we aim to measure mass distribution of mesons in nucleus precisely to study origin of hadron mass experimentally. We will perform an exclusive measurement using omega meson and simultaneous detection of production and decay processes. We have succeeded to construct a neutron detector.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (36 results)

All 2011 2010 2009 2008 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (30 results) Remarks (4 results)

  • [Journal Article] ω meson in nucleus, experimental study2010

    • Author(s)
      小沢恭一郎
    • Journal Title

      Progress of Theoretical Physics Supplement 186

      Pages: 325-330

    • NAID

      110008143457

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] ω meson in nucleus, experimental study2010

    • Author(s)
      小沢恭一郎
    • Journal Title

      Progress of Theoretical Physics Supplement

      Volume: 186 Pages: 325-330

    • NAID

      110008143457

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 核内ω中間子質量分布測定のための検出器開発2011

    • Author(s)
      桝本新一, 小沢恭一郎
    • Organizer
      日本物理学会第66回年次大会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-28
    • Related Report
      2010 Final Research Report
  • [Presentation] 核内ω中間子質量分布測定のための検出器開発2011

    • Author(s)
      桝本新一
    • Organizer
      物理学会 年会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-28
    • Related Report
      2010 Annual Research Report
  • [Presentation] ハドロン将来計画2011

    • Author(s)
      小沢恭一郎
    • Organizer
      第4回機構シンポジウム
    • Place of Presentation
      KEK
    • Year and Date
      2011-02-28
    • Related Report
      2010 Final Research Report
  • [Presentation] Experimental Activities at University of Tokyo2010

    • Author(s)
      小沢恭一郎
    • Organizer
      International Symposium on Nuclear Physics in Asia
    • Place of Presentation
      中国北京
    • Year and Date
      2010-10-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] J-PARC E06実験及びP26実験に向けたCsI(Tl)カロリメータ用新光読出し方式2010

    • Author(s)
      桝本新一, 小沢恭一郎
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      九州工業大学
    • Year and Date
      2010-09-11
    • Related Report
      2010 Final Research Report
  • [Presentation] J-PARC E06実験及びP26実験に向けたCsI(T1)カロリメータ用新光読出し方式2010

    • Author(s)
      桝本新一
    • Organizer
      物理学会 秋の分科会
    • Place of Presentation
      九州工業大学
    • Year and Date
      2010-09-11
    • Related Report
      2010 Annual Research Report
  • [Presentation] 核内ω中間子複合測定のための検出器系設計と開発2010

    • Author(s)
      宇都宮和樹
    • Organizer
      日本物理学会第65回年次大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-23
    • Related Report
      2009 Annual Research Report
  • [Presentation] 核内ω中間子質量分布測定のための検出器開発の現状2010

    • Author(s)
      桝本新一
    • Organizer
      日本物理学会第65回年次大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-23
    • Related Report
      2009 Annual Research Report
  • [Presentation] omega meson in nucleus, experimental study2010

    • Author(s)
      K.Ozawa
    • Organizer
      New Frontiers in QCD synposium
    • Place of Presentation
      YITP, Kyoto,Japan.
    • Year and Date
      2010-02-22
    • Related Report
      2010 Final Research Report
  • [Presentation] omega meson in nucleus, experimental study2010

    • Author(s)
      小沢恭一郎
    • Organizer
      New Frontiers in QCD synposium
    • Place of Presentation
      京都大学基礎物理学研究所
    • Year and Date
      2010-02-22
    • Related Report
      2009 Annual Research Report
  • [Presentation] Experimental Activities at University of Tokyo2010

    • Author(s)
      K.Ozawa
    • Organizer
      Internal Symposium on Nuclear Physics in Asia
    • Place of Presentation
      Convention Center of Beihang University, Beijing, China
    • Related Report
      2010 Final Research Report
  • [Presentation] 核内ω中間子複合測定のための検出器系設計と開発2010

    • Author(s)
      宇都宮和樹, 桝本新一, 小沢恭一郎
    • Organizer
      日本物理学会第65回年次大会
    • Place of Presentation
      岡山
    • Related Report
      2010 Final Research Report
  • [Presentation] 核内ω中間子質量分布測定のための検出器開発の現状2010

    • Author(s)
      桝本新一, 宇都宮和樹, 小沢恭一郎
    • Organizer
      日本物理学会第65回年次大会
    • Place of Presentation
      岡山
    • Related Report
      2010 Final Research Report
  • [Presentation] New detector design for combined measurements of omega meson2009

    • Author(s)
      宇都宮和樹
    • Organizer
      第3回日米物理学会合同核物理分科会(HAW09)
    • Place of Presentation
      ハワイ、米国
    • Year and Date
      2009-10-13
    • Related Report
      2009 Annual Research Report
  • [Presentation] Experimental study of ω meson in nucleus2009

    • Author(s)
      小沢恭一郎
    • Organizer
      US-Japan Joint Workshop on Meson Production Reactions at Jeffers
    • Place of Presentation
      ハワイ、米国
    • Year and Date
      2009-10-12
    • Related Report
      2009 Annual Research Report
  • [Presentation] Direct measurments of ω mass modification in A (π, nω) X reaction and ω→ π^0 γ decays2009

    • Author(s)
      K.Ozawa
    • Organizer
      Physics and Upgrade of the J-PARC hadron Facility
    • Place of Presentation
      J-PARC, Ibaraki, Japan.
    • Year and Date
      2009-09-18
    • Related Report
      2010 Final Research Report
  • [Presentation] Direct measurments of ω mass modification in A(π, nω)X reaction and ω→π^0γd2009

    • Author(s)
      小沢恭一郎
    • Organizer
      Physics and Upgrade of the J-PARC hadron Facility
    • Place of Presentation
      茨城量子ビーム研究センタ
    • Year and Date
      2009-09-18
    • Related Report
      2009 Annual Research Report
  • [Presentation] ω中間子原子核束縛状態探索のためのTOF中性子検出器の開発2009

    • Author(s)
      宇都宮和樹
    • Organizer
      中間子原子核束縛状態探索のためのTOF中性子検出器の開発
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-30
    • Related Report
      2008 Annual Research Report
  • [Presentation] New detector design for combined measurements of omega meson2009

    • Author(s)
      K.Utsunomiya, K.Ozawa
    • Organizer
      HAW09
    • Place of Presentation
      Waikoloa, Hawaii
    • Related Report
      2010 Final Research Report
  • [Presentation] Experimental study of ω meson in nucleus2009

    • Author(s)
      K.Ozawa
    • Organizer
      US-Japan Joint Workshop on Meson Production Reactions at Jefferson Lab and J-PARC
    • Place of Presentation
      Waikoloa, Hawaii
    • Related Report
      2010 Final Research Report
  • [Presentation] Mass modifications of vector mesons at normal density2009

    • Author(s)
      K.Ozawa
    • Organizer
      NUCLEAR MEDIUM EFFECTS ON THE QUARK AND GLUON, ECT*
    • Place of Presentation
      Villazzano, Italy
    • Related Report
      2010 Final Research Report
  • [Presentation] ω中間子原子核束縛状態探索のためのTOF中性子検出器の開発2009

    • Author(s)
      宇都宮和樹, 青木和也, 井澗勇気, 小沢恭一郎, 郡司卓, 小松雄哉, 四日市悟, 渡辺陽介
    • Organizer
      日本物理学会第64回年次大会
    • Place of Presentation
      立教大学
    • Related Report
      2010 Final Research Report
  • [Presentation] Experimental study of hadron mass in QCD medium2008

    • Author(s)
      K.Ozawa
    • Organizer
      Tokyo-Yonsei Workshop
    • Place of Presentation
      Yonsei University, Korea
    • Year and Date
      2008-10-30
    • Related Report
      2010 Final Research Report
  • [Presentation] Experimental study of hadron mass in QCD medium2008

    • Author(s)
      小沢恭一郎
    • Organizer
      Tokyo-Yonsei Workshop
    • Place of Presentation
      Yonsei University, Kore
    • Year and Date
      2008-10-30
    • Related Report
      2008 Annual Research Report
  • [Presentation] Chiral Properties in Nuclear Medium ~Origin of mass2008

    • Author(s)
      小沢恭一郎
    • Organizer
      ASIA Science seminar on Frontier Science at High-Intensity Proton A
    • Place of Presentation
      北京大学,中国
    • Year and Date
      2008-10-23
    • Related Report
      2008 Annual Research Report
  • [Presentation] Dense Matter at J-PARC2008

    • Author(s)
      小沢恭一郎
    • Organizer
      2nd Asian Triangle Heavy Ion Conference (ATHIC 2008)
    • Place of Presentation
      筑波大学
    • Year and Date
      2008-10-15
    • Related Report
      2008 Annual Research Report
  • [Presentation] Mass modifications of vector mesons at normal density2008

    • Author(s)
      小沢恭一郎
    • Organizer
      Mass modifications of vector mesons at normal density
    • Place of Presentation
      ECT^*, Villazzano, Italy
    • Year and Date
      2008-06-07
    • Related Report
      2008 Annual Research Report
  • [Presentation] Chiral Properties in Nuclear Medium-Origin of mass2008

    • Author(s)
      K.Ozawa
    • Organizer
      ASIA Science seminar on Frontier Science at High-Intensity Proton Accelerators
    • Place of Presentation
      Beijing University, China
    • Related Report
      2010 Final Research Report
  • [Presentation] Dense Matter at J-PARC2008

    • Author(s)
      K.Ozawa
    • Organizer
      2nd Asian Triangle Heavy Ion Conference (ATHIC 2008)
    • Place of Presentation
      University of Tsukuba, Japan
    • Related Report
      2010 Final Research Report
  • [Presentation] 加速器で探る核媒質中のハドロン2008

    • Author(s)
      小沢恭一郎
    • Organizer
      基研研究会「熱場の量子論とその応用」
    • Place of Presentation
      京都大学基礎物理学研究所
    • Related Report
      2010 Final Research Report 2008 Annual Research Report
  • [Remarks] ホームページ:

    • URL

      http://nucl.phys.s.u-tokyo.ac.jp/ozawa_g

    • Related Report
      2010 Final Research Report
  • [Remarks]

    • URL

      http://nucl.phys.s.u-tokyo.ac.jp/ozawa_g

    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://nucl.phys.s.u-tokyo.ac.jp/ozawa_g/

    • Related Report
      2009 Annual Research Report
  • [Remarks]

    • URL

      http://nucl.phys.s.u-tokyo.ac.jp/ozawa_g/

    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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