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2010 Fiscal Year Final Research Report

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

Research Project

  • PDF
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
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
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.

  • Research Products

    (18 results)

All 2011 2010 2009 2008 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (16 results) Remarks (1 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

    • 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
  • [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
  • [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
    • Year and Date
      20101000
  • [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
    • Year and Date
      20100000
  • [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
    • Year and Date
      20100000
  • [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
  • [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
  • [Presentation] New detector design for combined measurements of omega meson2009

    • Author(s)
      K.Utsunomiya, K.Ozawa
    • Organizer
      HAW09
    • Place of Presentation
      Waikoloa, Hawaii
    • Year and Date
      20091000
  • [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
    • Year and Date
      20091000
  • [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
    • Year and Date
      20090603-20090607
  • [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
    • Year and Date
      20090327-20090330
  • [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
  • [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
    • Year and Date
      20081019-20081025
  • [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
    • Year and Date
      20081013-20081015
  • [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
    • Year and Date
      20080903-20080904
  • [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
  • [Remarks] ホームページ:

    • URL

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

URL: 

Published: 2012-02-13   Modified: 2016-04-21  

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