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1994 Fiscal Year Final Research Report Summary

Nuclear and Particle Physics Studied by Ultra Rare-process Nuclear Spectroscopy

Research Project

Project/Area Number 05302017
Research Category

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

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

Principal Investigator

EJIRI Hiroyasu  Dept.of Phys., Osaka Univ., Prof., 理学部, 教授 (80013374)

Co-Investigator(Kenkyū-buntansha) OKADA Kenji  Kyoto Sangyo Univ., Prof., 理学部, 教授 (90093385)
TAKASUGI Eiichi  Dept.of Phys., Osaka Univ., Osaka Univ., Prof, 理学部, 教授 (00135633)
TANAKA Junichi  Dept.of Phys., Osaka Univ., Reseach Associate, 理学部, 助手 (70236595)
OHSUMI Hideaki  Dept.of Phys., Osaka Univ., Reseach Associate, 理学部, 助手 (70176882)
KISHIMOTO Tadafumi  Dept.of Phys., Osaka Univ., Prof., 理学部, 助教授 (90134808)
Project Period (FY) 1993 – 1994
KeywordsParticle and Nuclear Spectroscopy / non accelerator / Double Beta Decay / Dark Matters / Neutrino
Research Abstract

So far, experimental nuclear physics has been developped mainly by using accelerators. Nuclear structures and nuclear reaction mechanism have been extensively studied. The present URANUS puts emphasis on high sensitive detectors rather than accelerators. Thus it aims at exploring sensitivity(detector)frontiers rather than energy and intensity frontiers. URANUS opens new fields of particle and nuclear physics. They are conservation Laws, symmetry problems, fundamental interactions, neutrino physics, weak interactions, rate forbidden nuclear processes, rare(small)branches of nuclear reactions relevant to astrophysics, dark matters and their interaction with nucleons(quarks), and so on.
Nuclear and particle physics by URANUS has been studied by several separated groups and summarized by mainly two workshop. In the first year the workshop on "Nuclear and Particle Physics Studied by URANUS" was held at Kamioka in Nov.15-16,1993. At the end of the second year, our work was summarized in the workshop on "Symmetries and Conservation Laws in Nuclear Quantum System" which was held at RCNP,Osaka University in March 8-9,1995.

  • Research Products

    (35 results)

All Other

All Publications (35 results)

  • [Publications] H.Ejiri,K.Fushimi and H.Ohsumi: "Search for spin-coupled dark matter by studing the axial-vector excitation of nuclei" Physics Letters B. 317. 14-18 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Fushimi,H.Ejiri,H.Ohsumi,K.Okada et al: "Application of a large-volume NaI scintilator to search for dark matter" Physical Review C. 47. R425-R428 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] L.Lee,H.Ejiri,T.Kishimoto et al: "An Active Segment Target for Studying Hypernuclear Production" Nuclear Instrument and Methods in Physical Research A. 327. 287-295 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] E.Choi,H.Ejiri and H.Ohsumi: "Application of Ge Detector to Search for Fast Neutrons from DD Fusion in Deuterized Pd" Jpn.J.Appl.Phys.32. 3964-3967 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Ejiri and H.Toki: "Search for exotic nuclear transition associated with nuclear instability" Physics Letters B. 306. 218-223 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Ejiri: "Nuclear deexcitations of nucleon holes associated with nucleon decays in nuclei" Physical Review C. 48. 1442-1444 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Suzuki,…,H.Ejiri,et al: "Study of invisible nucleon decay,n→ννν^^-,and aforbidden nuclear transition in the Kamiokande Detector" Physic Letters B. 311. 357-361 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] J.Tanaka and H.Ejiri: "Limits on single and double Majoron emission processes in neutrinoless double beta decays of ^<100>Mo" Physical Review D. 48. 5412-5415 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] R.Hazam,H.Ejiri,K.Fushimi and H.Ohsumi: "Limits on single-and multinucleon decay in ^<127>I by inclusire measurement of nuclear γ-and X-rays" Physical Review C. 49. 2407-2412 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Ejiri,et al: "Double beta decays studied by ELEGANTS V" Nuclear Physics B(Proc.Supple.). 35. 372-374 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Fushimi,H.Ejiri,H.Ohsumi,K.Okada,et al: "Search for exotic nuclear transition by using the large volume NaI detector of ELEGANTS V" Nuclear Physics B(Proc.Supple.). 35. 400-402 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Ejiri: "Hypernuclear Structure" Nuclear Physics A. (発表予定). (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Kishimoto and H.Ejiri: "Polarization and Decays of Λ Hypernuclei Produced by(π^+,k^+)reaction" Prog.Theo.Phys.suppl. (発表予定). (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Kume,H.Ejiri,H.Ohsumi et al: "Double Beta Decay of ^<116>Cd" Nuclear Physics A. 577. 405C-410C (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Ejiri: "Nuclear spin responses in double beta decays and dark matter search" Nucl.Phys.A. 577. 399C-404C (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ajimura,H.Ejiri,: "Λ Hypernuclei by Quasi-Free(π^+,k^+)Reaction" Nucl.Phys.A. 577. 271C-276C (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Ejiri,K.Kume,H.Ohsumi et al: "Double Beta Decays of ^<116>Cd21GC17:J.Phys.Soc.Japan" 64. 339-343 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Ejiri,Y.Mizuno and T.Suzuki: "Spin-Isospin Responses And Weak Processes in Hadrons and Nuclei" North-Holland, 496 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Ejiri, K.Fushimi and H.Ohsumi: "Search for spin-coupled dark matter by studing the axial-vector excitaion of nuclei" Physics Letters. 317. 14-18 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Fushimi, H.Ejiri, K.Kinoshita, N.Kudomi, K.Kume, K.Nagata, H.Ohsumi, K.Okada, H.Sano and J.Tanaka: "Application of a large-volume NaI scintilator to search for dark matter" Physical Review. 47. 425-428 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] L.Lee, D.R.Gill, A.Olin, S.Yen, S.Ajimura, H.Ejiri, A.Higashi, G.Inoue, T.Kishimoto, F.Nakamura, H.Noumi, T.Fukuda, O.Hashimoto and T.Shibata: "An Active Segmented Target for Studying Hypernuclear Production" Nuclear Instrument and Methods in Physics Reserch. 327. 287-295 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] E.Choi, H.Ejiri and H.Ohsumi: "Application of Ge Detector to Search for Fast Neutrons from DD Fusion in Deuterized Pd" Jpn.J.Appl.Phys.32. 3964-3967 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Ejiri and H.Toki: "Search for exotic nuclear transition associated with nuclear instability" Physics Letters. 306. 218-223 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Ejiri: "Nuclear deexcitaions of nucleon holes associated with nucleon decays in nuclei" Physical Review. 48. 1442-1444 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Suzuki, Y.Fukuda, K.S.Hirata, K.Inoue, T.Ishida, T.Kajita, K.Kihara, M.Nakahata, K.Nakamura, A.Sakai, N.Sato, Y.Totuka, M.Mori, Y.Oyama, A.Suzuki, K.Takahashi, M.Yamada, M.Koshiba, K.Nishijima, T.Kajimura, T.Suda, A.T.Suzuki, K.Miyako, H.Miyata, H.Takei, E.Kodera, Y.Nagashima, M.Takita, H.Yokoyama, K.Kaneyuki, Y.Takeuchi, T.Tanimori and H.Ejiri: "Study of invisible nucleon decay, n*vvv, and a forbidden nuclear transition in the Kamiokande Detector" Physics Letters. 311. 357-361 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] J.Tanaka and H.Ejiri: "Limits on single-and double Majoron emission processes in neutrinoless double beta decays of^<100> Mo" Physical Review. 48. 5412-5415 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] R.Hazama, H.Ejiri, K.Fushimi and H.Ohsumi: "Limits on single and multinucleon decays in^<127> I by inclusive measurement of nuclear gamma-and X-rays" to be published in Physical Review. 49. (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Ejiri, K.Fushimi, R.Hazama, N.Kudomi, K.Nagata, H.Ohsumi, K.Okada and J.Tanaka: "Double beta decays studied by ELEGANTS V" Proc.of the III International Workshop on "Theory and Phenominology in Astroparticle and Underground Physics" (TAUP93), Gran Sasso Lab., Italy, 19-23 September 1993 ; Edited by A.Bottino Nuclear Physics B(Proc.Supple.). 35. 372-374 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Fushimi, H.Ejiri, R.Hazama, N.Kudomi, K.Nagata, H.Ohsumi, K.Okada and J.Tanaka: "Search for exotic nuclear transition by using the large volume NaI detector of ELEGANTS V" Proc.of the III International Workshop on "Theory and Phenominology in Astroparticle and Underground Physics" (TAUP93), Gran Sasso Lab., Italy, 19-23 September 1993 ; Edited by A.Bottino Nucl.Phys.B(Proc.Supple.). 35. 400-402 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Ejiri: "Hypernuclear Structure" Proc.Int.Conf.Perspectives in Nuclear Structure, NBI,June 1993, to be published in Nuclear Physics A. (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Kishimoto and H.Ejiri: "Polarization and Decays of A Hypernucnlei Produced by(pi^+, K^+)reaction" to be published in Prog.Theo.Phys.suppl.(1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Kume, H.Ejiri, K.Fushimi, R.Hazama, K.Kawasaki, N.Kudomi, H.Ohsumi, K.Okada, H.Sano, T.Senoo, T.Shibata, T.Shima, J.Tanaka and Yu.Zudesenko: "Double Beta Decay of^<116> Cd" Proc.Int.Symp on "Spin-Isospin resonances and weak process in hadrons and nuclei" March 1994, Osaka. 577. 405-410 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Ejiri: "Nuclear spin responses in double beta decays and dark matter search" Proc.Int.Symp on "Spin-Isospin resonances and weak process in hadrons and nuclei" March 1994, Osaka. 577. 399-404 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ajimura, H.Ejiri, T.Fukuda, D.R.Gill, O.Hashimoto, A.Higashi, G.Inoue, Y.Iseki, K.Kimura, T.Kishimoto, L.Lee, K.Maeda, F.Nakamura, M.Nomachi, H.Noumi, H.Ohsumi, A.Olin, H.Sano, T.Shibata and S.Yen: "A Hypernuclei by Quasi-Free(pi^+, K^+)Reaction" Proc.Int.Symp on "Spin-Isospin resonances and weak process in hadrons and nuclei" March 1994, Osaka. 577. 271-276 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Ejiri, K,Fushimi, R.Hazama, M.Kawasaki, V.Kouts, N.Kudomi, K.Kume, K.Nagata, H.Ohsumi, K.Okada, H.Sano, T.Senoo, T.shibata, T.Shima, J.Tanaka, Y.Zdesenko: "Double Beta Decays of^<116> Cd" 64. 339-343 (1995)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1996-04-15  

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