Production of a neutral francium atomic beam for search for the electric dipole moment of the electron

• Project/Area Number: 23740166
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Tohoku University
• Principal Investigator: KAWAMURA Hirokazu 東北大学, ラジオアイソトープセンター・サイクロトロン, 助教 (50586047)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 中性化 / 電気双極子能率 / フランシウム / ルビジウム / レーザー冷却 / レーザー冷却・トラップ

Research Abstract

The existence of the electron-electric dipole moment means the evidence of new physics beyond the standard model. To achieve an experiment performing a search for the electric dipole moment, a device that can convert from francium (Fr) ions produced via the nuclear fusion reaction to neutral atoms has been developed. We achieved actually neutralizing the Fr ions and trapping stable rubidium atoms converted from positive ions. It can be said that techniques required for trapping radioactive Fr atoms was established.

Research Products

• [Journal Article] Search for electron EDMwith laser cooled radioactive atom (2013)
  • Author(s): T. Inoue et al.
  • Journal Title: AIP Conf. Proc Volume: 1533 Pages: 134-139
  • DOI: 10.1063/1.4806789
  • Peer Reviewed
• [Journal Article] Laser-cooled radioactive francium factory at CYRIC (2013)
  • Author(s): Hirokazu Kawamura et al.
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section B Volume: -
  • Peer Reviewed
• [Journal Article] Search for permanent EDM using laser cooled Fr atoms (2012)
  • Author(s): Hirokazu Kawamura
  • Journal Title: Hyperfine Interactions Volume: 214 Issue: 1-3 Pages: 133-139
  • DOI: 10.1007/s10751-013-0788-7
  • Peer Reviewed
• [Journal Article] Development of a Neutralizer for the Search of an Electron EDM (2012)
  • Author(s): H. Kawamura et al
  • Journal Title: CYRIC Annual Report Volume: 2010-2011 Pages: 10-13
• [Journal Article] M.UchidaTest of Time Reversal Symmetry usingpolarized 8Li at TRIUMF-ISAC (2012)
  • Author(s): J. Murata, H. Baba, J.A. Behr, M. Hata,Y. Hirayama, M. Ikeda, D. Kameda, H.Kawamura, R. Kishi, C.D.P. Levy, Y. Nakaya,K. Ninomiya, M. Nitta, N. Ogawa, J.Onishi, R. Openshaw, M. Pearson,Seitaibashi, Y. Totsuka, T. Toyoda
  • Journal Title: Journal of Physics: Conference Series 312 Volume: CS312 Issue: 10 Pages: 102011-102011
  • DOI: 10.1088/1742-6596/312/10/102011
  • Peer Reviewed
• [Journal Article] Search for permanent EDM using laser cooled Fr atom (2012)
  • Author(s): H. Kawamura et al.
  • Journal Title: Proceedings of 5th International Workshop on Fundamental Physics Using Atoms 2011 Volume: - Pages: 74-78
• [Journal Article] Search for permanent EDM using laser cooled Fr atom (2011)
  • Author(s): H. Kawamura et al
  • Journal Title: Proceedings of 5th International Workshop on Fundamental Physics Using Atoms Volume: 2011 Pages: 74-78
• [Journal Article] Search for a permanent EDM using laser cooled radioactive atom (2011)
  • Author(s): Y.Sakemi, et al
  • Journal Title: J.Phys.Conf.Ser. Volume: 302 Pages: 12051-12056
  • DOI: 10.1088/1742-6596/302/1/012051
  • Peer Reviewed
• [Presentation] Search for a permanent EDM using laser cooledradioactive atom (2013)
  • Author(s): H. Kawamura et al
  • Organizer: INPC2013
  • Place of Presentation: Firenze, Italy
• [Presentation] Search for electric dipole moment of the electron with laser-cooled radioactive atoms (2013)
  • Author(s): H. Kawamura et al
  • Organizer: the 5th Scienceweb GCOE International Symbosium
  • Place of Presentation: Sendai, Japan
• [Presentation] Search for electron EDM in laser-cooled francium factory (2013)
  • Author(s): H. Kawamura et al
  • Organizer: SSP2012
  • Place of Presentation: Groningen, the Netherlands
• [Presentation] Search for a permanent EDM using laser cooled radioactive atom (Poster) (2013)
  • Author(s): Hirokazu Kawamura et al.
  • Organizer: the 25th International Nuclear Physics Conference (INPC 2013)
  • Place of Presentation: Firenze, Italy
• [Presentation] Search for electric dipole moment of the electron with laser-cooled radioactive atoms (2013)
  • Author(s): Hirokazu Kawamura et al.
  • Organizer: the 5th Scienceweb GCOE International Symposium
  • Place of Presentation: Sendai, Japan
• [Presentation] Laser-cooled radioactive francium factory at CYRIC (2012)
  • Author(s): H. Kawamura et al
  • Organizer: EMIS2012
  • Place of Presentation: Matsue, Japan
• [Presentation] Development of ion-to-atom beam converter forFr-EDM experiment (2012)
  • Author(s): H. Kawamura et al
  • Organizer: FPUA2012
  • Place of Presentation: Sendai, Japan
• [Presentation] Laser-cooled radioactive francium factory at CYRIC (Poster) (2012)
  • Author(s): Hirokazu Kawamura et al.
  • Organizer: XVI International Conference on Electromagnetic Isotope Separators and Techniques Related to their Applications (EMIS 2012)
  • Place of Presentation: Matsue, Japan
• [Presentation] Development of ion-to-atom beam converter for Fr-EDM experiment (Poster) (2012)
  • Author(s): Hirokazu Kawamura et al.
  • Organizer: 6th International Workshop on "Fundamental Physics Using Atoms" FPUA 2012
  • Place of Presentation: Sendai, Japan
• [Presentation] Search for electron EDM in laser-cooled francium factory (2012)
  • Author(s): Hirokazu Kawamura et al.
  • Organizer: 5th International Symposium on Symmetries in Subatomic Physics
  • Place of Presentation: Groningen, the Netherlands
• [Presentation] 電子EDM探索のための高輝度アルカリ原子ビームの開発 (2012)
  • Author(s): 佐藤智哉
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 兵庫県西宮市
• [Presentation] 冷却不安定原子を用いた対称性検証実験 (2011)
  • Author(s): 川村広和
  • Organizer: 『核スピン研究とその応用』研究会
  • Place of Presentation: 東京都目黒区
  • Year and Date: 2011-11-19
• [Presentation] Search for permanent EDM using laser cooled Fratom (2011)
  • Author(s): H. Kawamura et al
  • Organizer: FPUA2011
  • Place of Presentation: Okayama, Japan
• [Presentation] 電子EDM探索のための中性アルカリ原子生成装置の開発 (2011)
  • Author(s): 川村広和, 他
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 青森県弘前市
• [Presentation] Search for permanent EDM using laser cooled Fr atom (2011)
  • Author(s): H. Kawamura
  • Organizer: Fundamental Physics Using Atoms 2011(招待講演)
  • Place of Presentation: Okayama, Japan
• [Presentation] 冷却不安定原子を用いた対称性検証実験 (2011)
  • Author(s): 川村広和
  • Organizer: 「核スピン研究と応用」研究会(招待講演)
  • Place of Presentation: 東京都目黒区
• [Remarks] 川村広和
  • URL: http://cycgw1.cyric.tohoku.ac.jp/~kawamura/
• [Remarks] 川村広和
  • URL: http://cycgw1.cyric.tohoku.ac.jp/~kawamura/index.html