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2010 Fiscal Year Self-evaluation Report

Precision measurement of fundamental physical constants using exotic-atom spectroscopy

Research Project

  • PDF
Project/Area Number 20002003
Research Category

Grant-in-Aid for Specially Promoted Research

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Mathematics and Physics
Research InstitutionThe University of Tokyo

Principal Investigator

HAYANO Ryugo  The University of Tokyo, 大学院・理学系研究科, 教授 (30126148)

Project Period (FY) 2008 – 2012
Keywords反陽子原子 / K中間子原子 / エキゾチック原子 / CERN / J-PARC / レーザー分光 / X線分光 / 基礎物理定数
Research Abstract

反陽子原子,K中間子原子,エキゾチック原子,CERN,J-PARC,レーザー分光,X線分光,基礎物理定数エキゾチック原子は、反陽子など、電子以外の負電荷の粒子が原子核のまわりを回っている、自然界には存在しない奇妙な原子であり、それらが放出・吸収する光の周波数を精密に測定することで、通常原子の分光では得られない基礎物理定数を精密に決めることができる。
本研究では、
(1)反陽子ヘリウム原子と
(2)K-中間子ヘリウム原子
の二種類のエキゾチック・ヘリウム原子を高精度で分光し、陽子・電子質量比などの基礎物理定数の精度を格段に高めることをめざす。前者の研究はCERN研究所の反陽子減速器施設で、後者の研究はJ-PARC加速器のハドロン実験施設で推進する。

  • Research Products

    (12 results)

All 2011 2010 2009 2008 Other

All Journal Article (5 results) Presentation (5 results) Remarks (2 results)

  • [Journal Article] First measurement of kaonic helium-3 X-rays2011

    • Author(s)
      M.Bazzi, et al.(37人中14人目一アル ファベット順)
    • Journal Title

      Phys.Lett.B 697

      Pages: 199-202

  • [Journal Article] Spectroscopy of antiprotonic helium atoms and its contribution to the fundamental physical constants2010

    • Author(s)
      R.S.Hayano
    • Journal Title

      Proceedings of the Japan Academy, Series B 86

      Pages: 1-10

  • [Journal Article] Hadron properties in the nuclear medium2010

    • Author(s)
      R.S.Hayano , T.Hatsuda
    • Journal Title

      Rev.Mod.Phys. 82

      Pages: 2949-2990

  • [Journal Article] Antiproton magnetic moment determined from the HFS of pHe^+2009

    • Author(s)
      T.Pask, et al.(12名中4番目)
    • Journal Title

      Physics Letters B 678

      Pages: 55-59

  • [Journal Article] Solving the kaonic-helium puzzle2008

    • Author(s)
      R.S.Hayano
    • Journal Title

      Mod.Phys. Lett A23

      Pages: 2505-2511

  • [Presentation] Kaonic-Helium X-Rays2010

    • Author(s)
      R.S.Hayano
    • Organizer
      24th International Nuclear Physics Conference (INPC2010)
    • Place of Presentation
      Vancouver(カナタ)(招待講演)
    • Year and Date
      2010-07-05
  • [Presentation] Kaonic atoms and nuclei2010

    • Author(s)
      R.S.Hayano
    • Organizer
      12th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon
    • Place of Presentation
      Williamsburg(アメリカ合 衆国)(招待)
    • Year and Date
      2010-06-01
  • [Presentation] Hadrons in Nuclear Medium, experimental studies2010

    • Author(s)
      R.S.Hayano
    • Organizer
      New Frontiers in QCD
    • Place of Presentation
      YITP, Kyoto, Japan(招待講演)
    • Year and Date
      2010-02-25
  • [Presentation] Kaonic helium atoms2008

    • Author(s)
      R.S.Hayano
    • Organizer
      International Conference on Particles And Nuclei (PANICO8)
    • Place of Presentation
      Eilat(イスラエル)(招待講演)
    • Year and Date
      2008-11-13
  • [Presentation] Antiprotonic and kaonic Helium Atoms2008

    • Author(s)
      R.S.Hayano
    • Organizer
      Precision Physics of Simple Atomic Systems (PSAS2008)
    • Place of Presentation
      Windsor(カナダ)(招待講演)
    • Year and Date
      2008-07-25
  • [Remarks]

    • URL

      http://www.s.u-tokyo.ac.jp/story/rigakuru/world/04/01.html

  • [Remarks]

    • URL

      http://www.s.u-tokyo.ac.jp/movie.html?name-hayano20110304

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Published: 2012-03-09   Modified: 2016-04-21  

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