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Search for the relation between the CP violation phases appearing in neutrino oscillation and leptogenesis

Research Project

Project/Area Number 15540276
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionOsaka University

Principal Investigator

TAKASUGI Eiichi  Osaka University, Institute for Higher Education Research and Practice, Professor, 大学教育実践センター, 教授 (00135633)

Project Period (FY) 2003 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2006: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2005: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2004: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2003: ¥1,100,000 (Direct Cost: ¥1,100,000)
Keywordsneutrino / CP violation / lepton number violation / lepton flavor violation / electron positron collider / dark energy / Frogatt-Nielsen機構 / ヒエラルキー / CPの破れの起源 / フロガット・ニールセン機構 / ニュートリノ混合 / ニュートリノの質量行列 / マヨラナ位相 / bi-maximal mixing / 繰り込み群の効果 / レプトン数非保存過程 / レプトンの香りの非保存過程 / レプトジエネシス / 宇宙のバリオン数
Research Abstract

In this project, I investigated the structure of neutrino masse which arises from the see-saw mechanism, in view of various phenomena in the low and high energies. We considered that in the low energy the neutrino oscillation, the lepton number violating processes such as the neutrinoless double beta decay and the mu-meson capture, and in the high energy the leptogenesis and the effective interaction which arises in the supersymmetric unified theory. To discuss these phenomena, we used the renormalization group analysis and its analytic solution.
In particular, 1. we analyzed various phenomena by assuming the special neutrino mixing scheme at high energy and showed that this model reproduced the experimental data well and gave various predictions especially about 13 element of neutrino mixing matrix and the Dirac CP phase. 2. We investigated the effect of Majorana CP phases on the lepton flavor violation processes and found that the effect is quite important. 3. Various lepton number violating processes and their possibility to be investigated experimentally in the present and the near future experiment, are investigated systematically. 4. The lepton flavor violation in the decay of Higgs particles which are produced in the Linear Collider. 5. The origin of the dark energy is proposed and its possibility is argued.

Report

(5 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (25 results)

All 2006 2005 2004 2003 Other

All Journal Article (21 results) Publications (4 results)

  • [Journal Article] Colour entangled orphan quarks and dark energy from cosmic QCD phase transition2006

    • Author(s)
      S.Banerjee et al.
    • Journal Title

      Nuclear Physics A774

      Pages: 769-774

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Colour entangled orphan quarks and dark energy from cosmic QCD phase transition2006

    • Author(s)
      S.Banerjee, A.Bhattacharyya, S.K.Ghosh, E-M lgenfritz, S.Raha, B.Sinha, E.Takasugi, H.Toki
    • Journal Title

      Nucl.Phys.A 774

      Pages: 769-774

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Colour entangled orphan quarks and dark energy from cosmic QCD phase transition2006

    • Author(s)
      Shibaji Banerjee 他
    • Journal Title

      Nuclear Physics A774

      Pages: 769-774

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Cosmological dark energy from the cosmic QCD phase transition and colour entanglement2005

    • Author(s)
      S.Banerjee et al.
    • Journal Title

      Physics Letter B611

      Pages: 27-33

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] A variety of lepton number violating processes related to Majorana neutrino masses2005

    • Author(s)
      C.S.Lim et al.
    • Journal Title

      Progress of Theoretical Physics 113

      Pages: 1367-1375

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Enhancement of lepton flavor violation in a model with bi-maximal mixing at the grand unification scale2005

    • Author(s)
      S.Kanemura et al.
    • Journal Title

      Physical Review D72

      Pages: 93004-93004

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary 2005 Annual Research Report
  • [Journal Article] Phase effects from the general neutrino Yukawa matrix on lepton flavor violation2005

    • Author(s)
      S.Kanemura et al.
    • Journal Title

      Physical Review D72

      Pages: 55012-55012

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary 2005 Annual Research Report
  • [Journal Article] Cosmological dark energy from the cosmic QCD phase transition and colour entanglement2005

    • Author(s)
      S.Banerjee, A.Bhattacharyya, S.K.Ghosh, E-M Ilgenfritz, S.Raha, B.Sinha, E.Takasugi, H.Toki
    • Journal Title

      Phys.Lett.B 611

      Pages: 27-33

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] A variety of lepton number violating processes related to Majorana neutrino masses2005

    • Author(s)
      C.S.Lim, E.Takasugi, M.Yoshimura
    • Journal Title

      Prog.Theor.Phys. 113

      Pages: 1367-1375

    • NAID

      110001273658

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Enhancement of lepton flavor violation in a model with bi-maximal mixing at the grand unification scale2005

    • Author(s)
      S.Kanemura, K.Matsuda, T.Ota, T.Shindou, E.Takasugi, K.Tsumura
    • Journal Title

      Phys.Rev.D 72

      Pages: 93004-93004

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Phase effects from the general neutrino Yukawa matrix on lepton flavor violation2005

    • Author(s)
      S.Kanemura, K.Matsuda, T.Ota, T.Shindou, E.Takasugi, K.Tsumura
    • Journal Title

      Phys.Rev.D 72

      Pages: 55012-55012

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Phase effects from the general neutrino Yukawa matrix on lepton flavor violation2005

    • Author(s)
      S.Kanemura, K.Matsuda, T.Ota, T.Shindou, E.Takasugi, K.Tsumura
    • Journal Title

      Erratum-ibid.D 72

      Pages: 59904-59904

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] The role of Majorana CP phases in the bi-maximal mixing scheme -hierarchical Dirac mass case-2004

    • Author(s)
      T.Shindou, E.Takasugi
    • Journal Title

      Physical Review D70

      Pages: 13005-13005

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] Search for Lepton Flavor Violation in the Higgs Boson Decay at a Linear Collider2004

    • Author(s)
      S.Kanemura et al.
    • Journal Title

      Physics Letter B599

      Pages: 83-91

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] The role of Majorana CP phases in the bi-maximal mixing scheme -hierarchical Dirac mass case-2004

    • Author(s)
      T.Shindou, E.Takasugi
    • Journal Title

      Phys.Rev.D 70

      Pages: 13005-13005

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Search for Lepton Flavor Violation in the Higgs Boson Decay at a Linear Collider2004

    • Author(s)
      S.Kanemura, K.Matsuda, T.Ota, T.Shindou, E.Takasugi, K.Tsumura
    • Journal Title

      Phys.Lett.B 599

      Pages: 83-91

    • NAID

      110006414777

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Search for Lepton Flavor Violation in the Higgs Boson Decay at a Linear Collider2004

    • Author(s)
      S.Kanemura, K.Matsuda, T.Ota, T.Shindou, E.Takasugi
    • Journal Title

      Physics Letters B599

      Pages: 83-91

    • NAID

      110006414777

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Prediction of |V_{13}| and the Dirac phase in the Neutrino Mixing Matrix2003

    • Author(s)
      T.Miura et al.
    • Journal Title

      Nuclear Physics A721

      Pages: 537-540

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] The renormalization group effect to the bi-maximal mixing2003

    • Author(s)
      T.Miura et al.
    • Journal Title

      Physical Review D68

      Pages: 93009-93009

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Prediction of |V_{13}| and the Dirac phase in the Neutrino Mixing Matrix2003

    • Author(s)
      T.Miura, T.Shindou, E.Takasugi
    • Journal Title

      Nucl.Phys.A 721

      Pages: 537-540

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] The renormalization group effect to the bi-maximal mixing2003

    • Author(s)
      T.Miura, T.Shindou, E.Takasugi
    • Journal Title

      Phys.Rev.D 68

      Pages: 93009-93009

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Publications] Takahiro Miura 他: "The Renormalization Group Effect to the Bi-maximal Mixing"Phys.Rev. D68. 093009 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Takahiro Miura 他: "Prediction of |V_<13>| and the Dirac Phase in the Neutrino Mixing Matrix"Nucl.Phys. A721. 537-540 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Takahiro Miura 他: "The matter fluctuation effect to T violation"Nucl.Inst.Methods in Phys.Research. A503. 222 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] E.Takasugi: "The μ^-+(Z,A)→μ^++(Z-2,A) transition"Nucl.Inst.Methods in Phys.Research. A508. 252 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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