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Solar Neutrino Problem and Supersymmetric Grand Unified Theories

Research Project

Project/Area Number 08640374
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 素粒子・核・宇宙線
Research InstitutionOsaka University

Principal Investigator

TAKASUGI Eiichi  Osaka University Graduate school of Science, Professor, 大学院・理学研究科, 教授 (00135633)

Co-Investigator(Kenkyū-buntansha) TANAKA Minoru  Osaka University Graduate school of Science, Research Associate, 大学院・理学研究科, 助手 (70273729)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1998: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1997: ¥500,000 (Direct Cost: ¥500,000)
KeywordsSolar Neutrino / Atomospheric Neutrino / Neutrino Mixings / MASS / Composite Neutrino / Supersymmetry / Grand Unified Theories / 質合 / ニュートリノ / マヨラナ型質量項
Research Abstract

1. We examined how to reconstruct quark mass matrices in the NNI form from the experimental data.
We made an attempt to explain masses and mixing of quarks and lep-tons simultaneously in supersymmetric grand unified theories. In par-ticular, we consider a SUSY SO(10) model with two 10 dimensional Higgs and one 126 Higgs multiplets. In this model, the left-handed neutrino mass matrix is expressed in terms of quark and charged lepton mass matrices. With only two adjustable parameters, we successfully explain the observed pattern of neutrino masses and mixings.
2. We explored the possibiltiy of composite neutrinos and their consquences. We derived the constraint from the neutrinoless double beta decay and also analyzed e^-e^- * W^-W^- scattering with the double beta decay constraint.
3. We made research on the flavor violation physics in the supersymmetric models. In particular, we analyzed the b * sll decay and mu * egamma decays.

Report

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

    (24 results)

All Other

All Publications (24 results)

  • [Publications] EIICHI TAKASUGI: "Double Beta Decay Constraint on Composite Neutrinos" Prog.Theor.Phys.98. 977-985 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] E.Takasugi,M.Yoshimura: "Reconstruction of Quark Mass Matrices in the NNI Form from the Experimental Data" Prog.Theor.Pyhs.98. 1313-1323 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] R.Kinyua,E.Takasugi: "e^-e^- Colliosins Mediated by Composite Neutrinos" Prog.Theor.Pyhs.100. 607-614 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Goto et.al.: "b→4Sll^^- in the Minimel Supergravity Model" Phys.Rev.D55. 4273-4289 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Okada et.al.: "b→Sll^^- Process and Multi-Higgs Doublet Model" Phys.Lett.B405. 297-304 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Hirouchi,M.Tanaka: "Lepton Flavor Violation at Linear Callider Experiments in Super symmetric Grand Unified Theories" Phys.Rev.D58. O32004-1〜6 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] J.Hisano et. al.: "Enhancement of μ→eγ in the Super symmetric SU(5)GUT at Lagre tan β" Phys.Rev.D58. 116010-(1-6) (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] K.Oda et.al.: "Unified Explanation of Quark and Lepton Masses and Mixings in the Super Symmetric SO(10)Model" Phys.Rev.D. (in press). (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] EIICHI TAKASUGI: "The Rephasing Freedom and the NNI Form of Quark Mass Matrices" Prog.Theor.Phys. 98. 177-185 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] J.Hisanom et.al.: "Lepton-Flavor Violation in the Left-handed Slepton Production at Future Lepton Colliders" Preprint hep-ph. 52 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Eiichi Takasugi: "The Rephasing Freedon and the NNI Form of Quark Mass Matrices" Progress of Theoretical Physics. Vo.98, No.1. 177-185 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Eiichi Takasugi: "Double Beta Decay Constraint on Composite Neutrinos" Progess of Theoretical Physics. Vo.98, No.4. 977-985 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Eiichi Takasugi and Masaki Yoshimura: "Reconstruction of Quark Mass Matrices in the NNI From the Experimental Data" Progress of Theoretical Physics. Vo.98, No.6. 1313-1323 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Robert Kinyua and Eiichi Takasugi: "e^-e^- Collisions Mediated by Composite Neutrinos" Progress of Theoretical Physics. Vo.100, No.3. 607-614 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] K.Oda, E.Takasugi, M.Tanaka and M.Yoshimura: "Unified Explanation of Quark and Lepton Masses and Mixings in the Supersymmetric SO (10) Model" Physical Review D. (in press). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T,Goto, Y.Okada, Y.Shimizu and M.Tanaka: "b*sll in the Minimal Supergravity Model" Physical Review. D55, No7. 4273-4289 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Okada, Y.Shimizu and M.Tanaka: "b*sll Process and Multi-Higgs Doublet Model" Physics Letters. B405. 297-304 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Hirouchi and M.Tanaka: "Lepton Flavor Violation at Linear Collider Experiments in Supersym-metric Grand Unified Theories" Physical Review. D58. 032004-(1-6) (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] J.Hisano, D.Nomura, Y.okada, Y.Shimizu and M.Tanaka: "Enhancement of mu*egamma in the Supersymmetric SU (5) GCT at Large tanbeta" Physical Review. D58. 116010-(1-6) (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] J.Hisaom M.Nomura, Y.Shimizu and M.Tanaka: "Lepton-Flavor Violation in the Left-handed Slepton Production at Fu-ture Lepton Colliders" Preprint hep-ph/9808410. 52 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Hirouchi, M.Tanaka: "Lepton flawin violati on at linear coliden expern marto in super symnatic granld uni fied vueniso" Physical Review. D58. 032004-1-6 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] R.Kinyua, E.Takasugi: "e^-e^- callisims mediatel by Compasite Neutrinos" Progrero or Thearerical physi∽. 100#3. 607-614 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] J.Hisano, D.Nomura, Yakaba, Y.Shimizu, M.Tanaka: "Enlancement of M【surface chemistry arrow】er mithe gupergymetic SU(5) GUT at " Physical Review. D58. 116010-1-6 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Oda, E.Takasugi, M.tanaka, M.Toshimura: "Unified explanetim of Quank and lipton mason and mixnigs mm the super symmetric SO(10) model" Physical Review. (inpreso).

    • Related Report
      1998 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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