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Search for the neutron electric dipole moment and the time reversal violation

Research Project

Project/Area Number 18H05230
Research Category

Grant-in-Aid for Scientific Research (S)

Allocation TypeSingle-year Grants
Review Section Broad Section B
Research InstitutionOsaka University

Principal Investigator

畑中 吉治  大阪大学, 核物理研究センター, 特任教授 (50144530)

Co-Investigator(Kenkyū-buntansha) 谷畑 勇夫  大阪大学, 核物理研究センター, 特任教授 (10089873)
川崎 真介  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 (20712235)
岡村 崇弘  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 (90415042)
三島 賢二  大学共同利用機関法人高エネルギー加速器研究機構, 物質構造科学研究所, 特別准教授 (20392136)
渡邉 裕  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 (50353363)
槇田 康博  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, 教授 (30199658)
PIERRE EDGARD  大阪大学, 核物理研究センター, 特任助教(常勤) (30748893)
Project Period (FY) 2018 – 2022
Project Status Discontinued (Fiscal Year 2022)
Budget Amount *help
¥197,860,000 (Direct Cost: ¥152,200,000、Indirect Cost: ¥45,660,000)
Fiscal Year 2022: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
Fiscal Year 2021: ¥26,000,000 (Direct Cost: ¥20,000,000、Indirect Cost: ¥6,000,000)
Fiscal Year 2020: ¥39,130,000 (Direct Cost: ¥30,100,000、Indirect Cost: ¥9,030,000)
Fiscal Year 2019: ¥26,910,000 (Direct Cost: ¥20,700,000、Indirect Cost: ¥6,210,000)
Fiscal Year 2018: ¥94,250,000 (Direct Cost: ¥72,500,000、Indirect Cost: ¥21,750,000)
Keywords原子核(実験) / 素粒子(実験) / 超冷中性子 / 電気双極子モーメント / 時間反転対称性 / 原子核(実験) / 素粒子(実験) / 基本対称性
Outline of Annual Research Achievements

現在の中性子電気双極子モーメント(nEDM)探索の実験感度は測定に用いる超冷中性子(UCN)の統計精度で制限されている。カナダTRIUMF研究所に高強度のUCN源を建設することで、現状の感度を越えるnEDM探索実験を行うことを目標にしている。我々のUCN源では陽子ビームをタングステン標的に照射することによって生じる中性子を最終的に超流動ヘリウムで冷却することによりUCNを生成する。効率的にUCNを生成するためには超流動ヘリウムの温度を1.0K程度に維持する必要がある。超流動ヘリウム冷却用熱交換器は外部に0.8Kに冷却された液体ヘリウム3、内部を超流動ヘリウムで満たす。内部はUCNの通り道(UCNガイド)にもなるため、乱反射を避けるため鏡面研磨し、UCN反射率の高いニッケル・リンメッキを行う必要がある。低温側にはフィン構造を持たせ、低温でより顕著になるカピッツァ抵抗による温度差を低減する。また、十分な機械強度を持たせるために無酸素銅製の熱交換器本体は電子ビーム溶接によってステンレスフランジに取り付けられる。R4年度はこれらのプロセスを確認するために熱交換器ショートモデルの製作に成功した。ショートモデルによって確認された手法により、熱交換器実機の製作に取り掛かっている。
J-PARC MLFのパルスUCN源を用いた要素開発も行った。UCN用スピン解析器の開発ではシリコン基板にスパッタした鉄薄膜用いることで、先行実験に比べて約6分の1程度の大きさの外部磁場でも同程度の性能持たせることに成功している。UCN源から実験容器までUCNを輸送するUCNガイドの開発ではUCNの物質表面での反射を再現する新しいモデルを考案し、UCNガイドの評価方法を確立した。nEDM測定に用いるUCN保持容器の性能評価も行っている。
UCN源の設置されるTRIUMFではヘリウム供給ラインやヘリウム減圧のための大型ポンプなどの設置が行われた。ヘリウム3循環システムや液体重水素モデレーターシステムなどのUCN源付帯設備の準備も進んでいる。nEDM測定時の一様・安定磁場形成のために必要な磁気シールドルームの建設も開始された。磁気シールドルーム外部に設置されるアクティブ磁気シールドコイルの詳細設計も終えている。

Research Progress Status

令和4年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和4年度が最終年度であるため、記入しない。

Assessment Rating
Interim Assessment Comments (Rating)

A: In light of the aim of introducing the research area into the research categories, the expected progress has been made in research.

Report

(9 results)
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Abstract (Interim Assessment) ( PDF )   Annual Research Report   Interim Assessment (Comments) ( PDF )
  • 2019 Annual Research Report
  • 2018 Abstract ( PDF )   Comments on the Screening Results ( PDF )   Annual Research Report
  • Research Products

    (103 results)

All 2023 2022 2021 2020 2019 2018 Other

All Int'l Joint Research (5 results) Journal Article (9 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 9 results,  Open Access: 8 results) Presentation (86 results) (of which Int'l Joint Research: 32 results,  Invited: 17 results) Remarks (2 results) Funded Workshop (1 results)

  • [Int'l Joint Research]

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] TRIUMF/UBC/U. Winnipeg(カナダ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] TRIUMF/UBC/U. Winnipeg(カナダ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] TRIUMF/UBC/U. Winnipeg(カナダ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] TRIUMF/UBC/U. Winnipeg(カナダ)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] The Precision nEDM Measurement with UltraCold Neutrons at TRIUMF2022

    • Author(s)
      Ryohei Matsumiya et al.
    • Journal Title

      JPS Conference Proceedings

      Volume: 37 Pages: 020701-020701

    • DOI

      10.7566/jpscp.37.020701

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Study of Thin Iron Films for Polarization Analysis of Ultracold Neutrons2022

    • Author(s)
      Akatsuka Hiroaki、Higuchi Takashi、Hansen-Romu Sean、Hatanaka Kichiji、Hayamizu Tomohiro、Hino Masahiro、Ichikawa Go、Imajo Sohei、Jamieson Blair、Kawasaki Shinsuke、Kitaguchi Masaaki、Matsumiya Ryohei、Mishima Kenji
    • Journal Title

      JPS Conf. Proc.

      Volume: 37 Pages: 020801-020801

    • DOI

      10.7566/jpscp.37.020801

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Prospects for a neutron EDM measurement with an advanced ultracold neutron source at TRIUMF2022

    • Author(s)
      Higuchi Takashi、on behalf of the TUCAN collaboration
    • Journal Title

      EPJ Web of Conferences

      Volume: 262 Pages: 01015-01015

    • DOI

      10.1051/epjconf/202226201015

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The TRIUMF UltraCold Advanced Neutron Source2021

    • Author(s)
      Jeff Martin, B. Franke, K. Hatanaka, S. Kawasaki, and R. Picker
    • Journal Title

      Nuclear Physics News

      Volume: 31 Issue: 2 Pages: 19-22

    • DOI

      10.1080/10619127.2021.1881367

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Optimizing neutron moderators for a spallation-driven ultracold-neutron source at TRIUMF2020

    • Author(s)
      W. Schreyer, C.A. Davis, S. Kawasaki, T. Kikawa, C. Marshall, K. Mishima, T. Okamura, R. Picker
    • Journal Title

      Nucl. Instr. Meth. A: Accelerators, Spectrometers, Detectors and Associated Equipment,

      Volume: 959 Pages: 163525-163525

    • DOI

      10.1016/j.nima.2020.163525

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Fast-switching magnet serving a spallation-driven ultracold neutron source2019

    • Author(s)
      S. Ahmed, E. Altiere, K. Hatanaka, S. Kawasaki, Y.X. Watanabe et al.
    • Journal Title

      Phys. Rev. Accel. Beams

      Volume: 22 Issue: 10 Pages: 102401-102401

    • DOI

      10.1103/physrevaccelbeams.22.102401

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A beamline for fundamental neutron physics at TRIUMF2019

    • Author(s)
      S. Ahmed, T. Andalib, K. Hatanaka, S. Kawasaki, *R. Pickar, Y.X. Watanabe et al.
    • Journal Title

      Nucl. Instr. Meth. A

      Volume: 927 Pages: 101-108

    • DOI

      10.1016/j.nima.2019.01.074

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First ultracold neutrons at TRIUMF2019

    • Author(s)
      S. Ahmed, E. Altiere, K. Hatanaka, S. Kawasaki, Y. Makida, K. Mishima, T. Okamura, *W. Schreyer, I. Tanihata, Y.X. Watanabe et al.
    • Journal Title

      Phys. Rev. C

      Volume: 99 Issue: 2 Pages: 025503-025503

    • DOI

      10.1103/physrevc.99.025503

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cryogenic design for a high intensity ultracold neutron source at TRIUMF2019

    • Author(s)
      S. Kawasaki and T. Okamura for the TUCAN collaboration
    • Journal Title

      EPJ Web Conf.

      Volume: 219 Pages: 10001-10001

    • DOI

      10.1051/epjconf/201921910001

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Status and Prospects of the TUCAN EDM experiment2023

    • Author(s)
      M. Kitaguchi
    • Organizer
      KMI Workshop Searches of Electric Dipole Moment - From Theory to Experiments
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] TUCANによる中性子電気双極子モーメント探索実験2023

    • Author(s)
      川崎真介, TUCAN collaboration
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] TUCANによる中性子電気双極子モーメント探索実験2023

    • Author(s)
      赤塚浩明, 日野正裕, TUCAN collaboration
    • Organizer
      TRIUMFにおける中性子電気双極子モーメント測定のための偏極解析膜の評価
    • Related Report
      2022 Annual Research Report
  • [Presentation] 高強度超冷中性子源による中性子EDM探索にむけて2022

    • Author(s)
      樋口嵩
    • Organizer
      RCNP研究会 研究用原子炉を用いた原子核素粒子物理学
    • Related Report
      2022 Annual Research Report
  • [Presentation] 高強度超冷中性子源による中性子電気双極子モーメントの探索2022

    • Author(s)
      赤塚浩明
    • Organizer
      RCNP 研究会中性子と原子で探る基礎物理
    • Related Report
      2022 Annual Research Report
  • [Presentation] TUCAN実験のための中性子ガイド管のJ-PARC/MLF BL05でのパルスUCNを用いた透過率評価2022

    • Author(s)
      今城想平, TUCAN collaboration
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] TRIUMF における中性子 EDM 測定のための偏極解析膜の評価2022

    • Author(s)
      赤塚浩明, 日野正裕, TUCAN collaboration
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Neutron Electric Dipole Measurement by TUCAN2022

    • Author(s)
      S. Kawasaki
    • Organizer
      J-PARC Workshop "Progress for Fundamental Physics with Neutrons"
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Towards a neutron electric dipole moment measurement with an advanced ultracold neutron source at TRIUMF2022

    • Author(s)
      T. Higuchi
    • Organizer
      Physics of Fundamental Symmetries and Interactions (PSI2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Precision nEDM measurement at TRIUMF2022

    • Author(s)
      K. Hatanaka
    • Organizer
      The 14th International Workshop on Fundamental Physics Using Atoms (FPUA2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 中性子電気双極子モーメント探索TUCAN実験に向けた装置開発2022

    • Author(s)
      今城想平
    • Organizer
      KEK S型課題 合同研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] TUCANプロジェクト 高強度超冷中性子源による中性子電気双極子モーメントの探索2022

    • Author(s)
      赤塚浩明
    • Organizer
      KEK S型課題 合同研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 超冷中性子の偏極解析に用いる鉄薄膜の評価2022

    • Author(s)
      赤塚浩明
    • Organizer
      日本物理学会第77回年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] TUCAN 中性子電気双極子モーメント探索実験2022

    • Author(s)
      三島賢二
    • Organizer
      日本物理学会第77回年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] The TUCAN nEDM experiment¶2021

    • Author(s)
      Ryohei Matsumiya
    • Organizer
      FPUA2021 & FPUNA
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] TUCAN実験用ヘリウム3冷凍機の開発2021

    • Author(s)
      川崎真介、TUCANコラボレーション
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] UCN偏極解析器の開発に向けた鉄薄膜の磁気特性の評価2021

    • Author(s)
      赤塚浩明、日野正裕、TUCANコラボレーション
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] UCN偏極解析器の開発に向けた鉄薄膜の磁気特性の評価TRIUMFでの中性子EDM実験に用いられる中性子ガイド管のJ-PARC/MLF BL05での性能測定とその解析2021

    • Author(s)
      今城想平、TUCANコラボレーション
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] The precision nEDM measurement with UltraCold Neutrons at TRIUMF2021

    • Author(s)
      Ryohei Matsumiya
    • Organizer
      SPIN2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study of Thin Iron Films for Polarization Analysis of Ultracold Neutrons2021

    • Author(s)
      Hiroaki Akatsuka
    • Organizer
      SPIN2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] TUCAN実験用新UCN源の開発状況2021

    • Author(s)
      松宮亮平
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] TRIUMFにおける中性子EDM測定のための磁場関連実験要素の開発状況2021

    • Author(s)
      樋口嵩
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] TRIUMF での中性子 EDM 実験に向けた J-PARC/MLF BL05 での中性子ガイド管の性能測定2021

    • Author(s)
      今城想平
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 大強度超冷中性子源による 中性子電気双極子モーメント探索2021

    • Author(s)
      川崎真介
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] TUCAN EDM central region2021

    • Author(s)
      R. Picker
    • Organizer
      The Fourth International Workshop on Searches for a Neutron Electric Dipole Moment
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Prospects towards a neutron EDM measurement with an advanced ultracold neutron source at TRIUMF2021

    • Author(s)
      T. Higuchi
    • Organizer
      The Fourth International Workshop on Searches for a Neutron Electric Dipole Moment
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optimizing the performance of a spallation-driven ultracold-neutron source with deuterium and superfluid-helium moderators2021

    • Author(s)
      Wolfgang Schreyer
    • Organizer
      The Fourth International Workshop on Searches for a Neutron Electric Dipole Moment
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optical magnetometry for the TUCAN nEDM experiment,2021

    • Author(s)
      Wolfgang Klassen
    • Organizer
      The Fourth International Workshop on Searches for a Neutron Electric Dipole Moment
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Time-dependent Cryogenic Models of the TUCAN Source2021

    • Author(s)
      J. Martin
    • Organizer
      The Fourth International Workshop on Searches for a Neutron Electric Dipole Moment
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Nickel-Phosphorus Coating Challenges of the TUCAN UCN source2021

    • Author(s)
      Russell Mammei
    • Organizer
      The Fourth International Workshop on Searches for a Neutron Electric Dipole Moment
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Co-magnetometry for the TUCAN nEDM measurement2021

    • Author(s)
      Eric Miller
    • Organizer
      The Fourth International Workshop on Searches for a Neutron Electric Dipole Moment
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Overview of the new UCN facility at TRIUMF2021

    • Author(s)
      Florian Kuchler
    • Organizer
      The Fourth International Workshop on Searches for a Neutron Electric Dipole Moment
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of a Helium-3 Cryostat for the TRIUMF Ultra-Cold Advanced Neutron Source2021

    • Author(s)
      Shinsuke Kawasaki
    • Organizer
      The Fourth International Workshop on Searches for a Neutron Electric Dipole Moment
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Performance measurement of ultracold neutron guides at J-PARC for a neutron EDM experiment in TRIUMF2021

    • Author(s)
      Sohei Imajo
    • Organizer
      The Fourth International Workshop on Searches for a Neutron Electric Dipole Moment
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Studies of nEDM Systematics from Collective Rotational Motion of Neutrons2021

    • Author(s)
      Sean Vanbergen
    • Organizer
      The Fourth International Workshop on Searches for a Neutron Electric Dipole Moment
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Improving the statistical sensitivity of the neutron electric dipole moment experiment at TRIUMF2021

    • Author(s)
      Steve Sidhu
    • Organizer
      The Fourth International Workshop on Searches for a Neutron Electric Dipole Moment
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetic Shim Coils for the TUCAN nEDM Experiment2021

    • Author(s)
      M. McCrea
    • Organizer
      The Fourth International Workshop on Searches for a Neutron Electric Dipole Moment
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] TUCAN実験用ヘリウム3冷凍機の開発2021

    • Author(s)
      川崎真介
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] UCN偏極解析器の開発に向けた鉄薄膜の磁気特性の評価2021

    • Author(s)
      赤塚浩明
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] TRIUMFでの中性子EDM実験に用いられる中性子ガイド管のJ-PARC/MLF BL05 での性能測定とその解析2021

    • Author(s)
      今城想平
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Status of the Ultracold Neutron Source and nEDM Experiment at TRIUMF2021

    • Author(s)
      Russel Mammei
    • Organizer
      Canadian Association of Physics Congress
    • Related Report
      2020 Annual Research Report
  • [Presentation] The Spin Flio Pulse in the TUCAN EDM Experiment2021

    • Author(s)
      S. Vanbergen
    • Organizer
      Canadian Association of Physics Congress
    • Related Report
      2020 Annual Research Report
  • [Presentation] Magnetic Field Requirements of the TUCAN nEDM experiment2021

    • Author(s)
      M. McCrea
    • Organizer
      Canadian Association of Physics Congress
    • Related Report
      2020 Annual Research Report
  • [Presentation] Measurements of polarization power of TUCANs UCN SCM polarizer and prototype spin analyzer2021

    • Author(s)
      S. Hansen-Romu
    • Organizer
      Canadian Association of Physics Congress
    • Related Report
      2020 Annual Research Report
  • [Presentation] Time-dependent thermal modeling for the TUCAN source2021

    • Author(s)
      S. Stargardter
    • Organizer
      Canadian Association of Physics Congress
    • Related Report
      2020 Annual Research Report
  • [Presentation] Optical magnetometry for the TUCAN nEDM experiment2021

    • Author(s)
      W. Klassen
    • Organizer
      Canadian Association of Physics Congress
    • Related Report
      2020 Annual Research Report
  • [Presentation] Prospects towards a neutron EDM measurement with an advanced ultracold neutron source at TRIUMF2021

    • Author(s)
      T. Higuchi
    • Organizer
      Conference EXA-SSP
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Laser-based comagnetometry for the TUCAN nEDM measurement2021

    • Author(s)
      Eric Miller
    • Organizer
      9th Workshop on Optically Pumped Magnetometers
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of Iron Thin Films for Polarization Analysis of Ultracold Neutrons2021

    • Author(s)
      H. Akatsuka
    • Organizer
      24th International Spin Symposium (SPIN2021)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The precision nEDM measurement with Ultracold Neutrons at TRIUMF2021

    • Author(s)
      R. Matsumiya
    • Organizer
      24th International Spin Symposium (SPIN2021)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] TUCAN実験用新UCN源の冷凍機と中性子EDM測定装置の開発状況2020

    • Author(s)
      松宮亮平
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 中性子EDM実のための 磁場関連実要素の開発2020

    • Author(s)
      樋口嵩
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 中性子EDM実験に使用する中性子輸送ガイド管の性能評価2020

    • Author(s)
      今城想平
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] TUCAN実験による 中性子電気双極子モーメント探索2020

    • Author(s)
      川崎真介
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] TUCAN実験用ヘリウム3冷凍機の開発2020

    • Author(s)
      川崎真介
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Presentation] プロトタイプUCN源を用いた超流動ヘリウムの熱伝導率測定の試みについて2020

    • Author(s)
      松宮亮平
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Presentation] 中性子EDM測定のための加速器施設内の環境磁場補償システムの開発2020

    • Author(s)
      樋口嵩
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Presentation] 中性子EDM実験に使用する中性子輸送ガイド管の表面粗さ測定2020

    • Author(s)
      今城想平
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Presentation] The TRIUMF UltraCold Advanced Neutron source and Electric Dipole Moment experiment2019

    • Author(s)
      Wolfgang Schreyer
    • Organizer
      PSI2019
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Searching for the electric dipole moment of the neutron; a landscape overview2019

    • Author(s)
      Beatrice Franke
    • Organizer
      PSI2019
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Searches for the Neutron Electric Dipole Moment2019

    • Author(s)
      Thomas Lindner
    • Organizer
      J-PARC2019
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] TUCAN実験 中性子EDM測定のための磁場環境の開発2019

    • Author(s)
      樋口嵩
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Presentation] TUCAN実験のための新しいUCN源の開発2019

    • Author(s)
      松宮亮平
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Presentation] TUCAN EDM TRIUMF Ultra-cold Advanced Neutron project2019

    • Author(s)
      Jeffery Martin
    • Organizer
      FRIB-TA Topical Program
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Current Status of Neutron EDM experiments2019

    • Author(s)
      Jeffery Martin
    • Organizer
      INPC2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] nEDM searches worldwide2019

    • Author(s)
      Ruediger Picker
    • Organizer
      FPSTS19
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Progress on ultracold neutrons at TRIUMF2019

    • Author(s)
      Blair Jamieson
    • Organizer
      2019 CAP Congress
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Presentation] Improving the sensitivity of the neutron electric dipole experiment at TRIUMF2019

    • Author(s)
      Steve Sidhu
    • Organizer
      2019 CAP Congress
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Presentation] Producing ultracold neutrons with a spallation source and superfluid helium2019

    • Author(s)
      Wolfgang Schreyer
    • Organizer
      2019 CAP Congress
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Presentation] Measurements of the First Polarized Ultracold Neutrons at TRIUMF2019

    • Author(s)
      Sean Hansen-Romu
    • Organizer
      2019 CAP Congress
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Presentation] First high voltage breakdown in a test setup for the TUCAN neutron EDM experiment2019

    • Author(s)
      Florian Kuchler
    • Organizer
      2019 CAP Congress
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Presentation] Using PENTrack to study systematics in the neutron dipole moment measurement at TRIUMF2019

    • Author(s)
      Sean Vanbergen
    • Organizer
      2019 CAP Congress
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Presentation] The TRIUMF UltraCold Advanced Neutron source and Electric Dipole Moment experiment2019

    • Author(s)
      Wolfgang Schreyer,
    • Organizer
      PSI2019
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Current Status of Neutron EDM experiments,2019

    • Author(s)
      Jeffery Martin
    • Organizer
      INPC2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] UCN optics characterization for the next generation UCN source at TRIUMF2019

    • Author(s)
      E. Pierre
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Status of the TUCAN EDM experiment2018

    • Author(s)
      Ruediger Picker
    • Organizer
      Particle Physics with Neutrons at the ESS
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cryogenic Design for TUCAN’s New UCN Source2018

    • Author(s)
      Shinsuke Kawasaki
    • Organizer
      Fifthe Meeting of the Nuclear Physics Divisions of the APS and JPS
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Symmetry Violation Search with Neutrons2018

    • Author(s)
      Beatrice Franke
    • Organizer
      Fifthe Meeting of the Nuclear Physics Divisions of the APS and JPS
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Producing ultracold neutrons with a spallation source and superfluid helium,2018

    • Author(s)
      Ryohei Matsumiya
    • Organizer
      Fifthe Meeting of the Nuclear Physics Divisions of the APS and JPS
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Neutron Electric Dipole Moment Search by the TUCAN collaboration2018

    • Author(s)
      Edgard Pierre
    • Organizer
      Fifthe Meeting of the Nuclear Physics Divisions of the APS and JPS
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Towards the nEDM search at TRIUMF2018

    • Author(s)
      Ryohei Matsumiya
    • Organizer
      Hadron 2018 workshop
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Quantum Vortex Limitations to Ultracold Neutron Production2018

    • Author(s)
      Jeffery Martin
    • Organizer
      2018 CAP Congress
    • Related Report
      2018 Annual Research Report
  • [Presentation] The ultra-cold neutron facility at TRIUMF2018

    • Author(s)
      Florian Kuchler,
    • Organizer
      2018 CAP Congress
    • Related Report
      2018 Annual Research Report
  • [Presentation] Neutron electric dipole moment measurement: systematics and magnetic field control2018

    • Author(s)
      Beatrice Franke
    • Organizer
      2018 CAP Congress
    • Related Report
      2018 Annual Research Report
  • [Presentation] Development of a High Intensity Ultracold Neutron Source at TRIUM2018

    • Author(s)
      Shinsuke Kawasaki
    • Organizer
      International Workshop on Particle Physics at Neutron Source 2018
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Neutron scattering cross section of Diamond Nano Particle2018

    • Author(s)
      Kenji Mishima
    • Organizer
      International Workshop on Particle Physics at Neutron Source 2018
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Remarks]

    • URL

      http://fnp.kek.jp

    • Related Report
      2019 Annual Research Report
  • [Remarks]

    • URL

      http://fnp.kek.jp

    • Related Report
      2018 Annual Research Report
  • [Funded Workshop] RCNP Workshop on Fundamental physics using neutrons and atoms2018

    • Related Report
      2018 Annual Research Report

URL: 

Published: 2018-06-12   Modified: 2025-03-27  

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