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核子量子系を用いた対称性と保存則の研究

Research Project

Project/Area Number 07354004
Research Category

Grant-in-Aid for Co-operative Research (B)

Allocation TypeSingle-year Grants
Research Field 素粒子・核・宇宙線
Research InstitutionOsaka University

Principal Investigator

江尻 宏泰  大阪大学, 核物理研究センター, 教授 (80013374)

Co-Investigator(Kenkyū-buntansha) 中野 貴志  大阪大学, 理学部, 助手 (80212091)
大隅 秀晃  大阪大学, 理学部, 助手 (70176882)
藤原 守  大阪大学, 核物理研究センター, 助教授 (00030031)
土岐 博  大阪大学, 核物理研究センター, 教授 (70163962)
岸本 忠史  大阪大学, 理学部, 教授 (90134808)
Project Period (FY) 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1995: ¥1,800,000 (Direct Cost: ¥1,800,000)
Keywords自然界の対称性と保存則 / 二重ベータ崩壊 / ニュートリノ / ダ-クマタ- / スピン・アイソスピン / 偏極ハイパー核 / 電弱相互作用
Research Abstract

研究内容の概要は下記の通りである。
・核子量子系を用いた対称性と保存則の研究を以下の3方向からの研究にわかれて行ない、それぞれの実験及び理論研究を、それぞれのグループの特色を生かした形で発展させた。
(1)核反応(中性子核反応、含ストレンジネス核反応)における空間反転(P)と時間反転(T)対称性の破れ
(2)L-R対称性とニュートリノ(二重ベータ崩壊、荷電交換反応と核行列要素)
(3)超対称性とダ-クマタ-(スピン結合型ダ-クマタ-、シンチレーターやボロメーターによる直接探索)
・各グループに別れて行なわれた研究を、現状・問題点・相互の関係等について各テーマごとに実験・理論両面から検討を進め、三つの主要方向相互の関連について総合的な検討が行なわれた。
・核子量子系を用いた対称性と保存則の研究について主要問題の検討会と国際共同研究の基礎作りをめざして、1995年6月にはInternational Symposium: Weak and Electromagnetic Interactions in Nucleiを開き、また1995年3月には研究のまとめとしてInternational Symposium: FRONTIER'96を行なった。

Report

(1 results)
  • 1995 Annual Research Report
  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] H.Ejiri,…,K.Kume,…: "Double Beta Decays of ^<116>Cd" J.Phys.Soc.Japan.Lett.64. 339-343 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] K.Nagata,H.Ejiri,…: "Development of thin drift chamber for the double beta decay experiment" Nuclear Instruments and Methods A. 362. 261-272 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Ejiri and H.Toki: "Nuclear Matrix Elements for Two Neutrino Double Beta Decays" J.Phys.Soc.Japan.Lett.65. 7-10 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Ejiri: "Double Beta Decays and Spin Isospin Giant Resonances" Proc.Int.Conf.Giant Resonances,June 1995,KVI Groningen,Nucl.Phys.A. (to be published).

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Ejiri: "Electromagnetic and Weak Probes for Symmetry Studied at RCNP" Proc.Int.Symp.Weak and Elecromagnetic Interactions in Nuclei. 687-694 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] K.Fushimi,H.Ejiri,H.Ohsumi,…: "Search for Spin-coupled Dark Matter by means of Axial-Vector Excitation of Nuclei" Proc.Int.Workshop on Theoretical and Phenomenological Aspects of Underground Physics,TAUP'95,Sept.1995,Toledo.(1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] M.Fujiwara,…H.Ejiri,…: "Nuclear Spin-Isospin Responses and Weak Processes" Proc.Int.Symp.Weak and Electromagnetic Interactions in Nuclei,June 1995,Osaka,Ed.H.Ejiri,T.Kishimoto and T.Sato,World Scientific Pub.1995.289-297 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] N.Kudomi,H.Ejiri,…: "The Study of Double Beta Decays of ^<100>Mo by means of ELEGANT" Proc.Int.Symp.Weak and Electromagnetic Interactions in Nuclei,June 1995,Osaka,Ed.H.Ejiri,T.Kishimoto and T.Sato,World Scientific Pub.1995. 204-207261-272 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] N.Kudomi,H.Ejiri,…: "Double Beta Decays of ^<100>Mo by means of ELEGANTSV" Proc.Int.Conf.Nucl.Phys.Beijin,Aug.1995,World Scientific.

    • Related Report
      1995 Annual Research Report
  • [Publications] T.Kishimoto: "Study of P(T)violation in ∧N→NN" Proc.Int.Symp.Weak and Electromagnetic Interactions in Nuclei,June 1995,Osaka,Ed.H.Ejiri,T.Kishimoto and T.Sato,World Scientific Pub.1995. 514-521 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Noumi,…H.Ejiri,…T.Kishimoto: "Measurement of ^5_∧He Weak Decay Branching Ratios" Proc.Int.Symp.Weak and Electromagnetic Interactions in Nuclei,June 1995,Osaka,Ed.H.Ejiri,T.Kishimoto and T.Sato,World Scientific Pub.1995. 550-553 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] R.Hazama,…H.Ejiri,…T.Kishimoto,…: "Search for Spin-coupled Dark Matter and Double Beta Decays of ^<48>Ca by Means ELEGANT VI with CaF_2" Proc.Int.Symp.Weak and Electromagnetic Interactions in Nuclei,June 1995,Osaka,Ed.H.Ejiri,T.Kishimoto and T.Sato,World Scientific Pub.1995. 635-639 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Ejiri,T.Kishimoto,T.Sato: "Weak and Electromagnetic Interactions in Nuclei" World Scientific, 745 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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