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The study of a tauneutrino

Research Project

Project/Area Number 08045023
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionUniversity-to-University Cooperative Research
Research Field 素粒子・核・宇宙線
Research InstitutionNagoya University

Principal Investigator

NIWA Kimio  Nagoya University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (60113445)

Co-Investigator(Kenkyū-buntansha) PANNMAN J.  CERN PPE DIV., Professor, 教授
NAKAMURA Mitsuhiro  Nagoya University, Graduate School of Science, Research Associate, 大学院・理学研究科, 助手 (90183889)
HOSHINO Kaoru  Nagoya University, Graduate School of Science, Associate Professor, 大学院・理学研究科, 助教授 (70022738)
PANNMAN J  CERN研究所, 教授
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥6,700,000 (Direct Cost: ¥6,700,000)
Fiscal Year 1998: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1997: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1996: ¥2,500,000 (Direct Cost: ¥2,500,000)
KeywordsTau-neutrino / Neutrino oscillation / Emulsion / Dark matter / Elementary particle / ニュートリノ / クォークレプトン / ダークマター / ダ-クマタ- / エマルション / ニュートリノ質量 / エマルジョン / シンチレーションファイバー
Research Abstract

We proceeded neutrino oscillation experiment CHORUS.This experiment using the neutrino beam of CERN is the experiment of international collaboration of 10 countrys(ltaly, Germany, Holanda, etc).
The detector consist of the emulsion target and the counter to identify the particle and momentum. Nagoya University contribute on the emulsion part and many laboratory of Europe contribute on counter parts.
Two international conferences were organized in past two years, the first one is "The first Workshop on Nuclear Emulsion Techniques" on 12-14/June 1998 at Nagoya City conference hole, and the second one is the memorial meeting of the completion of "Ultra first Track Selector" on 8-11/March 1999.
We succeeded to improve the technology how to use the emulsion in past two years and got the big progress in preparation for the future experiment "Long base line neutrino oscillation".

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] E.Arik: "The CHORUS experiment to search for ν_μ→ν_τ oscillation" Nucl.Inst.Meth.A401. 7-44 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] E.Eskut: "A search for ν_μ→ν_τ oscillation" Phys.Lett.B424. 202-212 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] P.Annis: "Obersvation of neutrino induced diffractive D_S^+ production and subsequent decay D_S^+→D_s^+→τ^+→μ^+" Phys.Lett.B435. 558-464 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] E.Eskut: "Search for Search for ν_μ→ν_τ using the τ decay modes into a single charged particle." Phys.Lett.B434. 205-213 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S.Aoki: "Quaifree p(K^-,K^+)Ξ^- reaction in nuclear emulsion" Nuclear Physics. A644. 365-385 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] E.Eskut: "Observation of neutrino induced diffractive D_s^+ production in neutrino production and subsequent decay D_s^-→D_s→τ→μ" et al., Phys.Lett.B435. 458-464 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] E.Arik, et al.: "The CHORUS experiment to search for nu_<mu>*nu_<tau> oscillation" Nucl.Inst.Meth. A401. 7-44 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] E.Eskut, et al.: "A search for nu_<mu>*nu_<tau> oscillation" Phys.Lett. B424. 202-212 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] P.Annis, et al.: "Obersvation of neutrino induced diffractive D_S^<*+> production and subsequent decay D_S^<*+>*D_S^+*tau^+*mu^+" Phys.Lett. B435. 558-464 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] E.Eskut, et al.: "Search for Search for nu_<mu>*nu_<tau> using the tau decay modes into a single charged particle." Phys.Lett. B434. 205-213 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S.Aoki, et al.: "Quaifree p (K^-, K^+)XI^- reaction in nuclear emulsion" Nuclear Physics. A644. 365-385 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] E.Eskut et al.: "Observation of neutrino induced diffractive D_S^<+*> production in neutrino production and subsequent decay D_S^**D_S*tau*mu" Phys.Lett. B435. 458-464 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S.Aoki: "Quaifree p(K^-,K^+)Ξ^・ reaction in nuclear emulsion" Nuclear Physics. A644. 365-385 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] E.Eskut: "Search for Search for v_μ →v_τ using the τ decay modes into a single charged particle." Phys.Lett.B434. 205-213 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] P.Annis: "Obersvation of neutrino induced diffractive D_S^<・+> production and subsequent decay D_S^<・+>→D_s^<・+>→τ^+→μ^+" Phys.Lett.B435. 558-464 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] E.Eskut: "A search for v_μ →v_τ oscillation" Phys.Lett.B424. 202-212 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] E.Eskut et.al.: "The CHORUS experiment to search for νμ→ντ oscillation." Nucl.Inst.Meth.A401. 7-44 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] E.Eskut el al.: "Search for νμ→ντ oscillation by the CHORUS experiment." Phys.Lett.(in press).

    • Related Report
      1997 Annual Research Report
  • [Publications] 丹羽 公雄: "理化学辞典" 岩波書店(共著), (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Kimio NIWA: "Measurement of B(D_S^+→μ^+ν_μ)/B(D_S^+→φμ^+ν_μ)and determination of the decay constant fD_S." Physics Letters B. 382. 299-304 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kimio NIWA: "R&D for high energy gamma-ray telescope using scintillation fiber with image intensifiers." Nuclear Instruments and Methods in Physics Research. A378. 185-195 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kimio NIWA: "An APD linear array for scintillating fiber tracker read-out." Nuclear Instruments and Methods in Physics Research. A383. 81-88 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 丹羽 公雄: "ニュートリノと重力波" 裳華房. (印刷中). 250 (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-09-16  

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