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Measurement of hyperfine splitting of the ground state of muonium atom

Research Project

Project/Area Number 23244046
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionThe University of Tokyo

Principal Investigator

MATSUDA Yasuyuki  東京大学, 総合文化研究科, 准教授 (70321817)

Co-Investigator(Kenkyū-buntansha) SAITO Naohito  高エネルギー加速器研究機構, 素粒子原子核研究所, 教授 (20321763)
SHIMOMURA Koichiro  高エネルギー加速器研究機構, 物質構造科学研究所, 准教授 (60242103)
Research Collaborator KAWAMURA Naritoshi  高エネルギー加速器研究機構, 物質構造科学研究所, 研究機関講師 (60311338)
SASAKI Kenichi  高エネルギー加速器研究機構, 超伝導低温工学センター, 准教授 (70322831)
TOYOTA Akihisa  高エネルギー加速器研究機構, 素粒子原子核研究所, 助教 (20373186)
TORII Hiroyuki  東京大学, 大学院総合文化研究科, 助教 (20302838)
MIBE Tsutomu  大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (80536938)
Project Period (FY) 2011-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥48,360,000 (Direct Cost: ¥37,200,000、Indirect Cost: ¥11,160,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2012: ¥31,070,000 (Direct Cost: ¥23,900,000、Indirect Cost: ¥7,170,000)
Fiscal Year 2011: ¥14,430,000 (Direct Cost: ¥11,100,000、Indirect Cost: ¥3,330,000)
Keywords素粒子(実験) / ミュオン / ミュオニウム / 超微細構造 / マイクロ波分光 / ミュオニウム原子 / RF キャビティ / 高純度ガス / ミューオン / RF共鳴空洞
Research Abstract

Muonium atom is a unique probe to verify the consistency of the standard model in very high precision and/or to investigate new physics beyond the standard model, because it is made of only leptons which do not have internal structures. We aim to realize a new experiment which aims to improve the accuracy of the measurement of hyperfine splitting of the ground state of muonium atom by an order of magnitude at J-PARC MLF. We have developed a RF cavity which has two resonance frequencies which can be independently tuned with two tuning bars, a gas chamber which holds Kr gas for three months with less than 1ppm impurity, positron detectors which can cope with high counting rate under 1T magnetic field, and a NMR system which can measure magnetic field with accuracy better than 1ppm.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (45 results)

All 2014 2013 2012 2011

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 1 results) Presentation (35 results) (of which Invited: 1 results)

  • [Journal Article] Online full two-dimentional imaging of pulsed muon beams at J-PARC MUSE using a gated image intensifier2014

    • Author(s)
      T. U. Ito, A. Toyoda, W. Higemoto, M. Tajima, Y. Matsuda, K. Shimomura
    • Journal Title

      Nuclear Instruments and Methods in Physics Research A

      Volume: vol. 754 Pages: 1-9

    • DOI

      10.1016/j.nima.2014.04.014

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of High-Rate Positron Tracker for the Muonium Production Experiment at J-PARCS2014

    • Author(s)
      Kanda, H. Fujimori, Y. Fukao, Y. Ikedo, K. Ishida, M. Iwasaki, N. Kawamura, K. M. Kojima, M. Lee, S. Makimura, T. Mibe, Y. Miyake, J. Nakamura, Y. Nagashima, T. Nagatomo, K. Nagumo, S. Nishimura, S. Okada, N. Saito, K. Shimomura, T. Suzuki, P. Strasser, K. Ueno, and E. Won
    • Journal Title

      JPS Conf. Proc.

      Volume: 2 Pages: 10404-10404

    • DOI

      10.7566/jpscp.2.010404

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Measurement of Muonium Hyperfine Splitting at J-PARC2014

    • Author(s)
      K. S. Tanaka, M. Aoki, H. Iinuma, Y. Ikedo, K. Ishida, M. Iwasaki, Y. Ueno, R. Ohkubo, T. Ogitsu, R. Kadono, O. Kamigaito, N. Kawamura, D. Kawall, S. Kanda, K. Kubo, T. Kume, A. Koda, K. M. Kojima, N. Saito, N. Sakamoto, K. Sasaki, K. Shimomura, M. Sugano, D. Tomono, A. Toyoda, H. A. Torii, E. Torikai, K. Nagamine, K. Nishiyama, P. Strasser, Y. Fukao, Y. Fujiwara, Y. Matsuda, T. Mibe, Y. Miyake, and M. Yoshida
    • Journal Title

      JPS Conf. Proc.

      Volume: 2 Pages: 1-6

    • DOI

      10.7566/jpscp.2.010405

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] H line; A Beamline for Fundamental Physics in J-PARC2014

    • Author(s)
      Naritoshi Kawamura, Akihisa Toyoda, Tsutomu Mibe, Naohito Saito, Masaharu Aoki, Koichiro Shimomura, Yasuhiro Miyake
    • Journal Title

      Journal of the Physical Society of Japan, Conference Proceedings (JPS-CP)

      Volume: 2 Pages: 010112-010112

    • DOI

      10.7566/jpscp.2.010112

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Measurement of muonium emission from silica aerogel2013

    • Author(s)
      P. Bakule, G.A. Beer, D. Contreras, M. Esashi, Y. Fujiwara, Y. Fukao, S. Hirota, H. Iinuma, K. Ishida, M. Iwasaki, T. Kakurai, S. Kanda, H. Kawai, N. Kawamura, G.M. Marshall, H. Masuda, Y. Matsuda, T. Mibe, Y. Miyake, S. Okada, K. Olchanski, A. Olin, H. Onishi, N. Saito, K. Shimomura, P. Strasser, M. Tabata, D. Tomono, K. Ueno, K. Yokoyama, S. Yoshida
    • Journal Title

      Prog. Theor. Exp. Phys

      Volume: 103C01 Issue: 10 Pages: 1-10

    • DOI

      10.1093/ptep/ptt080

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] J-PARC MUSE H-line optimization for the g-2 and MuHFS experiments2013

    • Author(s)
      A. Toyota, Y. Fujiwara, Y. Fukao, O. Kamigaito, N. Kawamura, Y. Matsuda T. Mibe, T. Ogitsu, N. Saito, K. Sasaki, K. Shimomura, M. Sugano, K. Tanaka, D. Tomono, H.A. Torii
    • Journal Title

      Journal of Physics : Conference Series

      Volume: vol. 408 Pages: 012073-012073

    • DOI

      10.1088/1742-6596/408/1/012073

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Superconducting Magnet Design for the Hyperfine Structure Measurement of Muonium at the J-PARC2013

    • Author(s)
      K. Sasaki, M. Sugano, R. Ohkubo, T. Ogitsu, N. Saito, K. Shimomura, and A. Yamamoto
    • Journal Title

      IEEE Trans. Appl. Supercond.

      Volume: 23 Issue: 3 Pages: 4500704-4500704

    • DOI

      10.1109/tasc.2013.2245714

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Cryogenic Design of a Superconducting Solenoid for Muonium Hyperfine Structure Measurement2013

    • Author(s)
      M. Sugano, K. Sasaki, R. Ohkubo, T. Kume, N. Kimura, R. Okada, T. Okamura, K. Shimomura, N, Saito, T. Ogitsu, and A. Yamamoto
    • Journal Title

      IEEE Trans. Appl. Supercond.

      Volume: 23 Issue: 3 Pages: 3800204-3800204

    • DOI

      10.1109/tasc.2012.2233259

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development status of superconducting solenoid for the MuHFS experiment at the J-PARC2013

    • Author(s)
      K. Sasaki, M. Sugano, R. Ohkubo, H. Iinuma, T. Ogitsu, N. Saito, K. Shimomura, and A. Yamamoto, J. Phys.
    • Journal Title

      Conf. Ser.

      Volume: 408 Pages: 012074-012074

    • DOI

      10.1088/1742-6596/408/1/012074

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of a superconduciting solenoid for Hyperfine Structure Measurement of Muonium at J-PARC2012

    • Author(s)
      K. Sasaki, et al.
    • Journal Title

      IEEE Transactions on Applied Superconductivity

      Volume: 22 Issue: 3 Pages: 4500904-4500904

    • DOI

      10.1109/tasc.2011.2176301

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] measurement of muonium hyperfine splitting at J-PARC2014

    • Author(s)
      田中香津生
    • Organizer
      Fundamental Physics Using Atoms 2014
    • Place of Presentation
      日本科学未来館(東京都江東区)
    • Related Report
      2013 Annual Research Report
  • [Presentation] J-PARC MUSE におけるミュオニウム超微細構造測定2014

    • Author(s)
      田中香津生
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大学(神奈川県平塚市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] ミュオニウム超微細構造測定に向けた磁場測定プローブの開発2014

    • Author(s)
      佐々木憲一
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大学(神奈川県平塚市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] J-PARC MUSE におけるミュオニウムの超微細構造の精密測定2014

    • Author(s)
      松田恭幸
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大学(神奈川県平塚市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Precision Measurement of Muonium Hyperfine Splitting at J-PARC2014

    • Author(s)
      神田聡太郎
    • Organizer
      物構研サイエンスフェスタ
    • Place of Presentation
      つくば国際会議場(茨城県つくば市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Precision measurement of muonium hyperfine splitting at J-PARC2013

    • Author(s)
      神田聡太郎
    • Organizer
      The 3^<rd> workshop on the Physics of Fundamental Symmetries and Interactions at low energies and the precision frontier
    • Place of Presentation
      PSI 研究所、フィリンゲン、スイス
    • Related Report
      2013 Final Research Report
  • [Presentation] Status and prospect of the muonium experiment at J-PARC2013

    • Author(s)
      鳥居寛之
    • Organizer
      International Workshop on e+e- collisions from Phi to Psi
    • Place of Presentation
      ローマ・ラ・サピエンツァ大学、ローマ、イタリア
    • Related Report
      2013 Final Research Report
  • [Presentation] Fundamental Physics with muon - with emphasis on muonium hyperfine interaction2013

    • Author(s)
      松田恭幸
    • Organizer
      Preschool of 1st International Symposium on Science Explored by Ultra Slow Muon
    • Place of Presentation
      くにびきメッセ、島根県松江市
    • Related Report
      2013 Final Research Report
  • [Presentation] measurement of muonium hyperfine splitting at J-PARC2013

    • Author(s)
      田中香津生
    • Organizer
      OIST Beam Physics and Beam Physics Youth Workshops 2013
    • Place of Presentation
      沖縄科学技術大学院大学(沖縄県恩納村)
    • Related Report
      2013 Annual Research Report
  • [Presentation] ミュオニウムの超微細構造精密測定のための R&D の現状2013

    • Author(s)
      下村浩一郎
    • Organizer
      日本物理学会2013年秋季大会
    • Place of Presentation
      徳島大学(徳島県徳島市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Fundamental physics with muon - with emphasis on muonium hyperfine splitting2013

    • Author(s)
      松田恭幸
    • Organizer
      Preshool of 1st International Symposium on Science Explored by Ultra Slow Muon
    • Place of Presentation
      くにびきメッセ(島根県松江市)
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Measurement of muonium hyperfine splitting at J-PARC2013

    • Author(s)
      田中香津生
    • Organizer
      The 15th International Workshop on Neutrino Factories, Super Beams, and Beta Beams
    • Place of Presentation
      高能物理研究所(北京、中国)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Status and prospect of the muonium experiment at J-PARC2013

    • Author(s)
      鳥居寛之
    • Organizer
      International Workshop on e+e- collisions from Phi to Psi
    • Place of Presentation
      ローマ・ラ・サピエンツァ大学(ローマ、イタリア)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Precision measurement of muonium hyperfine splitting at J-PARC2013

    • Author(s)
      神田聡太郎
    • Organizer
      3rd Workshop on the Physics of Fundamental Symmetries and Interactions at low energies and the precision frontier
    • Place of Presentation
      PSI 研究所(フィリンゲン、スイス)
    • Related Report
      2013 Annual Research Report
  • [Presentation] J-PARC MUSE におけるミュオニウム超微細構造測定2013

    • Author(s)
      田中香津生
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(広島県東広島市)
    • Related Report
      2012 Annual Research Report
  • [Presentation] ミュオニウム超微細構造精密測定用超伝導磁石システムの開発2013

    • Author(s)
      佐々木憲一
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(広島県東広島市)
    • Related Report
      2012 Annual Research Report
  • [Presentation] J-PARC MUSE におけるミュオニウム超微細構造測定実験でのビームプロファイルモニタの開発2013

    • Author(s)
      田島美典
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(広島県東広島市)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 高計数率耐性を備えた陽電子飛跡検出器の開発および J-PARC におけるミューオン g-2/EDM 精密測定実験のためのミューオニウム生成標的の開発2013

    • Author(s)
      神田聡太郎
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(広島県東広島市)
    • Related Report
      2012 Annual Research Report
  • [Presentation] ミュオニウムの超微細構造の精密測定に向けての開発現状2013

    • Author(s)
      下村浩一郎
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(広島県東広島市)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Mu HFS experiment at MLF H-line2013

    • Author(s)
      松田恭幸
    • Organizer
      物構研サイエンスフェスタ
    • Place of Presentation
      つくば国際会議場(茨城県つくば市)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Measurement of muonium hyperfine splitting at J-PARC2012

    • Author(s)
      田中香津生
    • Organizer
      The 23^<rd> International Conference on Atomic Physics
    • Place of Presentation
      Ecole Polytechnique Palaiseau, パレゾー、フランス
    • Related Report
      2013 Final Research Report
  • [Presentation] Superconducting Magnet Design for the Hyperfine Structure Measurement of Muonium at the J-PARC2012

    • Author(s)
      佐々木賢一
    • Organizer
      Applied Superconductivity Conference 2012
    • Place of Presentation
      オレゴンコンベンションセンター、ポートランド、米国
    • Related Report
      2013 Final Research Report
  • [Presentation] Measurement of muonium hyperfine splitting at J-PARC2012

    • Author(s)
      田中香津生
    • Organizer
      The 23rd International Conference on Atomic Physics (ICAP 2012)
    • Place of Presentation
      Ecole Polytechnique Palaiseau (パレゾー、フランス)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Measurement of muonium hyperfine splitting at J-PARC2012

    • Author(s)
      田中香津生
    • Organizer
      6th International Conference on Fundamental Physics Using Atoms 2012
    • Place of Presentation
      東北大学(宮城県仙台市)
    • Related Report
      2012 Annual Research Report
  • [Presentation] J-PARC MUSE におけるミュオニウムの超微細構造の精密測定2012

    • Author(s)
      豊田晃久
    • Organizer
      日本物理学会2012年秋期大会
    • Place of Presentation
      横浜国立大学(神奈川県横浜市)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Superconducting Magnet Design for the Hyperfine Structure Measurement of Muonium at J-PARC2012

    • Author(s)
      佐々木憲一
    • Organizer
      Applied Superconductivity Conference 2012
    • Place of Presentation
      オレゴンコンベンションセンター(ポートランド、米国)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Cyrogenic design of a superconducting solenoid for muonium hyperfine structure measurement2012

    • Author(s)
      菅野未知央
    • Organizer
      Applied Superconductivity Conference 2012
    • Place of Presentation
      オレゴンコンベンションセンター(ポートランド、米国)
    • Related Report
      2012 Annual Research Report
  • [Presentation] J-PARC MUSEにおけるミュオニウムの超微細構造の精密測定2012

    • Author(s)
      豊田晃久
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学(兵庫県西宮市)
    • Related Report
      2011 Annual Research Report
  • [Presentation] J-PARC MUSEにおけるミュオニウム超微細構造測定に向けたキャビティ製作2012

    • Author(s)
      田中香津生
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学(兵庫県西宮市)
    • Related Report
      2011 Annual Research Report
  • [Presentation] J-PARC MUSEにおけるミュオニウム超微細構造精密測定用超伝導磁石システムの開発2012

    • Author(s)
      菅野未知央
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学(兵庫県西宮市)
    • Related Report
      2011 Annual Research Report
  • [Presentation] J-PARC MUSE H-line Optimization for the g-2/EDM and MuHFS experiments2011

    • Author(s)
      豊田晃久
    • Organizer
      the 13^<th> International Workshop on Neutrino Factories, Super beams and Beta Beams
    • Place of Presentation
      ジュネーブ大学、ジュネーブ、スイス
    • Related Report
      2013 Final Research Report
  • [Presentation] Measurement of muonium hyperfine splitting at J-PARC2011

    • Author(s)
      田中香津生
    • Organizer
      5th International Conference on Fundamental Physics using Atoms
    • Place of Presentation
      岡山大学(岡山県岡山市)
    • Related Report
      2011 Annual Research Report
  • [Presentation] Mu HFS experiment at J-PARC2011

    • Author(s)
      下村浩一郎
    • Organizer
      13th International Workshop on Neutrino Factories, Super beams and Beta beams
    • Place of Presentation
      ジュネーブ大学(スイス)
    • Related Report
      2011 Annual Research Report
  • [Presentation] Mu HFS experiment at J-PARC: RF cavity design2011

    • Author(s)
      松田恭幸
    • Organizer
      13th International Workshop on Neutrino Factories, Super beams and Beta beams
    • Place of Presentation
      ジュネーブ大学(スイス)
    • Related Report
      2011 Annual Research Report
  • [Presentation] Development of the superconducting solenoid for the MuHFS experiment at J-PARC2011

    • Author(s)
      佐々木憲一
    • Organizer
      13th International Workshop on Neutrino Factories, Super beams and Beta beams
    • Place of Presentation
      ジュネーブ大学(スイス)
    • Related Report
      2011 Annual Research Report

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Published: 2011-04-06   Modified: 2019-07-29  

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