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Measurement of Beta-Neutrino Correlation using Single Photon Imaging Detectors

Research Project

Project/Area Number 18684010
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionRikkyo University

Principal Investigator

MURATA Jiro  Rikkyo University, 理学部, 准教授 (50360649)

Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥29,640,000 (Direct Cost: ¥22,800,000、Indirect Cost: ¥6,840,000)
Fiscal Year 2008: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2007: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
Fiscal Year 2006: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
Keywords原子核(実験) / ベータ崩壊 / 時間反転対称性 / 標準模型の検証 / 電子線偏極度計 / ドリフトチェンバー / 偏極核 / TRIAC / TRIUMF / 標準模型 / 飛跡検出器 / 偏極 / スピン緩和 / 光子イメージング
Research Abstract

本研究は、ベータ崩壊の相関項の精密観測により標準模型の精密検証を行う事を目的として行われた。具体的には、主に偏極核から放出される電子線の横方向偏極度の存在を検証する事で、時間反転対称性の破れを探索する実験を装置開発から初めて本番実験まで行った。
結果として、世界で初めてイベント再構成によるMott散乱非対称観測による時間反転対称性の破れに対する制限を与えることに成功した。本研究の装置を用いて、TRIUMF研究所にて次期計画を実行する予定であり、その最終テストを完了させる事が出来たと言える。

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (22 results)

All 2009 2008 2007 2006 Other

All Journal Article (8 results) Presentation (14 results)

  • [Journal Article] The first T-Violation Experiment at KEK-TRIAC2009

    • Author(s)
      H. Kawamura, J. Murata et. al
    • Journal Title

      Eur. Phys. J (in press)

    • Related Report
      2008 Final Research Report
  • [Journal Article] Development of a new drift chamber based Mott polarimeter2007

    • Author(s)
      H. Kawamura, J. Murata et. al
    • Journal Title

      AIP CP915

      Pages: 218-218

    • Related Report
      2008 Final Research Report
  • [Journal Article] Beta neutrino correlation and T-violation experiment in nuclear beta decay2007

    • Author(s)
      J. Murata et. al
    • Journal Title

      AIP CP915

      Pages: 1105-1105

    • Related Report
      2008 Final Research Report
  • [Journal Article] Development of a new drift chamber based Mott polarimeter2007

    • Author(s)
      H. Kawamura, J. Murata et. al.
    • Journal Title

      AIP Conf. Prof 915

      Pages: 1105-1108

    • Related Report
      2007 Annual Research Report
  • [Journal Article] Beta neutrino correlation and T-Violation experiment in nuclear beta decay2007

    • Author(s)
      J. Murata et. al.
    • Journal Title

      AIP Conf. Proc 915

      Pages: 218-221

    • Related Report
      2007 Annual Research Report
  • [Journal Article] Beta Neutrino Correlation and T-Violation Experiment in Nuclear Beta Decay2007

    • Author(s)
      J.Murata et al.
    • Journal Title

      Proc. The 17th International Spin Physics Symposium ISPIN2006, AIP CP (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Development of a New Drift Chamber based Mott Polarimeter2007

    • Author(s)
      H.Kawamura, J.Murata et al.
    • Journal Title

      Proc. The 17th International Spin Physics Symposium SPIN2006, AIP CP (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] The First T-Violation Experiment at KEK-TRIAC

    • Author(s)
      H. Kawamura, T. Akiyama, M. Hata, Y. Hirayama, D. Kameda, D. Nagae, K. Ninomiya, M. Nitta, E. Seitaibashi, T. Toyoda, Y. Watanabe, and J. Murata
    • Journal Title

      European Physical Journal (印刷中)

    • Related Report
      2008 Annual Research Report
  • [Presentation] TRIACにおける偏極8Liを用いた時間反転対称性破れの探索2009

    • Author(s)
      川村広和他
    • Organizer
      日本物理学会2009年春季大会(立教大学)
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-28
    • Related Report
      2008 Annual Research Report
  • [Presentation] TRIACにおける偏極8Liを用いた時間反転対称性破れの探索2009

    • Author(s)
      川村広和,村田次郎,他
    • Organizer
      日本物理学会2009年春季大会
    • Place of Presentation
      立教大学
    • Related Report
      2008 Final Research Report
  • [Presentation] TRIACにおける時間反転対称性の破れ探索実験2008

    • Author(s)
      豊田健司他
    • Organizer
      日本物理学会2008年秋季大会(山形大学)
    • Place of Presentation
      山形大学
    • Year and Date
      2008-09-22
    • Related Report
      2008 Annual Research Report
  • [Presentation] The First T-Violation Experiment at KEK-TRIAC2008

    • Author(s)
      H. Kawamura, et.al.
    • Organizer
      SYMMETRIES AND SPIN (Spin-Praha-2008)
    • Place of Presentation
      Prague, Czech
    • Year and Date
      2008-07-24
    • Related Report
      2008 Annual Research Report
  • [Presentation] TRIACにおける偏極不安定核を用いた時間反転対称性破れの探索2008

    • Author(s)
      川村広和,村田次郎,他
    • Organizer
      第5回停止・低速不安定核ビームを用いた核分光研究会
    • Place of Presentation
      大阪大学
    • Related Report
      2008 Final Research Report
  • [Presentation] TRIACにおける時間反転対称性の破れ探索実験2008

    • Author(s)
      豊田健司,村田次郎,他
    • Organizer
      日本物理学会2008年秋季年会
    • Place of Presentation
      山形大学
    • Related Report
      2008 Final Research Report
  • [Presentation] 時間反転対称性検証実験のための偏極保持装置開発2008

    • Author(s)
      成田圭吾,村田次郎,他
    • Organizer
      日本物理学会2008年春季大会
    • Place of Presentation
      近畿大学
    • Related Report
      2008 Final Research Report
  • [Presentation] 時間反転対称性の破れ検証実験のための偏極保持装置の開発2007

    • Author(s)
      村田次郎, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      2007-03-25
    • Related Report
      2007 Annual Research Report
  • [Presentation] The first T-Violation Experiment at KEK-TRIAC2007

    • Author(s)
      H. Kawamura, J. Murata et. al
    • Organizer
      Spin-Praha-2008
    • Place of Presentation
      Prague
    • Related Report
      2008 Final Research Report
  • [Presentation] 時間反転対称性検証実験のための8LiのT12007

    • Author(s)
      成田圭吾,村田次郎,他
    • Organizer
      原子核プローブ生成とそれを用いた物性研究III
    • Place of Presentation
      KUR専門研究会・京大原子炉実験所
    • Related Report
      2008 Final Research Report
  • [Presentation] A New Drift Chamber based Mott Polarimeter for T-Violation experiment2007

    • Author(s)
      H. Kawamura, J. Murata et. al
    • Organizer
      INPC2007
    • Place of Presentation
      Tokyo
    • Related Report
      2008 Final Research Report
  • [Presentation] T-Violating transverse electron polarization in polarized nuclear beta decay2007

    • Author(s)
      J. Murata et. al
    • Organizer
      INPC2007
    • Place of Presentation
      Tokyo
    • Related Report
      2008 Final Research Report
  • [Presentation] Development of a new drift chamber based Mott polarimeter2006

    • Author(s)
      H. Kawamura, J. Murata et. al
    • Organizer
      SPIN06
    • Related Report
      2008 Final Research Report
  • [Presentation] Beta neutrino correlation and T-violation experiment in nuclear beta decay2006

    • Author(s)
      J. Murata et. al
    • Organizer
      SPIN06
    • Related Report
      2008 Final Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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