1995 Fiscal Year Annual Research Report

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 Institution	Osaka 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)
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。

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)
[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)
[Publications] H.Ejiri and H.Toki: "Nuclear Matrix Elements for Two Neutrino Double Beta Decays" J.Phys.Soc.Japan.Lett.65. 7-10 (1996)
[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).
[Publications] H.Ejiri: "Electromagnetic and Weak Probes for Symmetry Studied at RCNP" Proc.Int.Symp.Weak and Elecromagnetic Interactions in Nuclei. 687-694 (1995)
[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)
[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)
[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)
[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.
[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)
[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)
[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)
[Publications] H.Ejiri,T.Kishimoto,T.Sato: "Weak and Electromagnetic Interactions in Nuclei" World Scientific, 745 (1995)

1995 Fiscal Year Annual Research Report

核子量子系を用いた対称性と保存則の研究

Principal Investigator

江尻 宏泰 大阪大学, 核物理研究センター, 教授 (80013374)

Research Products

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

[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)

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

[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).

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

[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)

[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)

[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)

[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.

[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)

[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)

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

江尻宏泰大阪大学, 核物理研究センター, 教授 (80013374)