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Charenge to measure EDM of unstable nuclei

Research Project

Project/Area Number 26610056
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionUniversity of Tsukuba

Principal Investigator

Ozawa Akira  筑波大学, 数理物質系, 教授 (80260214)

Co-Investigator(Renkei-kenkyūsha) SASA Kimikazu  筑波大学, 数理物質系, 准教授 (20312796)
NAGAE Daisuke  理化学研究所, 仁科加速器センター, 協力研究員 (60455285)
Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords核磁気モーメント / 核偏極 / 原子核物理
Outline of Final Research Achievements

Purpose for this study is direct measurement of electric dipole moments (EDM) of unstable nuclei. For this purpose, during the research term, we performed production of unstable nuclei and measurement of polarization degree for the nuclei, that are necessary for measurement of EDM. In Research Center for Nuclear Physics in Osaka University, we performed to produce unstable nuclei 20F and 40Sc used polarized deuteron and proton, respectively, however, we could not confirm their nuclear polarization. In Tandem Accelerator Complex in University of Tsukuba, we tried new method to produce unstable nuclei; resonant proton-capture reactions. We found that unstable nuclei, 25Al and 30P can be produced effectively by this method.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • Research Products

    (11 results)

All 2016 2015 2014

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (4 results) (of which Invited: 1 results)

  • [Journal Article] Velocity-dependent transverse momentum distribution of fragments produced from 40Ar+9Be at 95 MeV/nucleon2015

    • Author(s)
      S. Momota, I. Tanihata, A. Ozawa, M. Notani, K. Yoshida, K. Morimoto, T. Yamaguchi, T. Onishi, A. Yoshida, Y. X. Watanabe, Z. Liu, and A. Ono
    • Journal Title

      Phys. Rev. C

      Volume: 92 Issue: 2 Pages: 024608-024608

    • DOI

      10.1103/physrevc.92.024608

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Test of rotating magnetic field syatem for bera-NMR method2015

    • Author(s)
      D. Nagae, Y. Ishibashi, N. Inaba, S. Okada, K. Sawahata, Y. Abe and A. Ozawa
    • Journal Title

      UTTAC Annual Report 2013

      Volume: 83 Pages: 12-14

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Charge-changing cross sections of ^<30>Ne, ^<32,33>Na with a proton target2014

    • Author(s)
      A. Ozawa, S. Ishimotoほか
    • Journal Title

      Phys. Rev

      Volume: C89 Issue: 4 Pages: 44602-44602

    • DOI

      10.1103/physrevc.89.044602

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Journal Article] Density distribution of 14Be from reaction cross-section measurements2014

    • Author(s)
      T. Moriguchi, A. Ozawa, T. Suzuki, et al.,
    • Journal Title

      Nucl. Phys. A

      Volume: 929 Pages: 83-93

    • DOI

      10.1016/j.nuclphysa.2014.06.003

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Journal Article] Excited states above the proton threshold in 26Al2014

    • Author(s)
      T. Komatsubara, S. Kubono, T. Hayakawa, T. Moriguchi, Y. Ito, H. Ooishi, Y. Ishbashi, K. Y. Hara, A. Ozawa, T. Shizuma, S. Hayakawa, H. Yamaguchi, D. N. Binh, D. Kahl, A. A. Chen, J. Chen, K. Nakamura, and T. Kajino
    • Journal Title

      The European Physical Journal

      Volume: A50 Issue: 9 Pages: 136-136

    • DOI

      10.1140/epja/i2014-14136-4

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evidence of halo structure in 37Mg observed via reaction cross sections and intruder orbitals beyond the island of inversion2014

    • Author(s)
      M. Takechi, S. Suzuki, D. Nishimura, M. Fukuda, T. Ohtsubo, M. Nagashima, T. Suzuki, T. Yamaguchi, A. Ozawa, T. Moriguchi, H. Ohishi, T. Sumikama, H. Geissel, N. Aoi, Rui-Jiu Chen, De-Qing Fang, N. Fukuda, S. Fukuoka, H. Furuki, N. Inabe et al.
    • Journal Title

      Physical Review C

      Volume: 90 Issue: 6

    • DOI

      10.1103/physrevc.90.061305

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cherenkov light detection as a velocity selector for uranium fission products at intermediate energies2014

    • Author(s)
      T. Yamaguchi, A. Enomoto, J. Kouno, S. Yamaki, S. Matsunaga, F. Suzaki, T. Suzuki, Y. Abe, D. Nagae, S. Okada, A. Ozawa, Y. Saito, K. Sawahata, A. Kitagawa, S. Sato
    • Journal Title

      Nucl. Instrum. Methods Phys. Res. A

      Volume: 766 Pages: 123-125

    • DOI

      10.1016/j.nima.2014.04.021

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 中性子過剰核39Sの磁気モーメント測定2016

    • Author(s)
      石橋陽子
    • Organizer
      日本物理学会第71回年次大会
    • Place of Presentation
      東北学院大学(宮城県仙台市)
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] Mass measurement with Rare-RI Ring2014

    • Author(s)
      Akira Ozawa
    • Organizer
      Workshop ‘Science and Next Generation Experiments at FRIB and RIBF’ in 4th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
    • Place of Presentation
      Waikoloa, Hawaii, US
    • Year and Date
      2014-10-07 – 2014-10-11
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] RIビーム飛行時間検出器の開発2014

    • Author(s)
      小沢顕
    • Organizer
      H25年度HIMAC共同利用研究成果発表会
    • Place of Presentation
      ホテルポートプラザちば、千葉市
    • Year and Date
      2014-04-21 – 2014-04-22
    • Related Report
      2014 Research-status Report
  • [Presentation] 固体水素標的を用いた陽子ドリップライン近傍核生成法の開発2014

    • Author(s)
      小沢顕
    • Organizer
      H25年度HIMAC共同利用研究成果発表会
    • Place of Presentation
      ホテルポートプラザちば、千葉市
    • Year and Date
      2014-04-21 – 2014-04-22
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2017-05-10  

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