Flavor Symmetry and Origin of Neutrino Mass Matrix

• Project/Area Number: 17540243
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Niigata University
• Principal Investigator: TANIMOTO Morimitsu Niigata University, 自然科学系, 教授 (90108366)
• Co-Investigator(Kenkyū-buntansha): NAKANO Hiroaki 新潟大学, 自然科学系, 教授 (60262424)
• Project Period (FY): 2005 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,850,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥450,000); Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2007: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2006: ¥700,000 (Direct Cost: ¥700,000); Fiscal Year 2005: ¥1,200,000 (Direct Cost: ¥1,200,000)
• Keywords: フレーバー対称性 / フレーバー混合 / 非可換離散対称性 / 超対称性粒子 / スレプトン質量行列 / FCNC / A4対称性 / D4対称性 / ニュートリノ質量行列 / ニュー卜リノの質量変化 / S(3)離散対称性 / ニュートリノの質量変化 / フレーバー対称性の起源

Research Abstract

非可換離散対称性を世代対称性として導入し、その現象論的帰結を明らかにした。S4,Delata(54)の対称性は、A4 対称性と同様、レプトンのフレーバー混合に対して実験が示唆するTri-bimaximal mixing を導くことを発見した。さらに、S4 対称性はSU(5)大統一理論を用いると、レプトンのTri-bimaximal mixing を再現すると同時に、クォークのフレーバー混合であるカビボ角を15 度とすることを明らかにした。また、フレーバー対称性のモデルを超対称性化し、スレプトンの質量行列を解析して、フレーバーの変化する中性カレント(FCNC)の大きさを求めた。これらの予言はLHC の実験で検証される。

Research Products

• [Journal Article] S(4) Flavor Symmetry of Quarks and Leptons in SU(5) GUT (2009)
  • Author(s): Hajime Ishimori, Yusuke Shimizu,Morimitsu Tanimoto,
  • Journal Title: Progress of Theoretical Physics 121 Pages: 769-787
• [Journal Article] Lepton Flavor Model from Delta(54) Symmetry (2009)
  • Author(s): Hajime Ishimori, Tatsuo Kobayashi, Hiroshi Okada, Yusuke Shimizu, MorimitsuTanimoto,
  • Journal Title: JHEP 0904 : 011
• [Journal Article] Soft supersymmetry breaking terms fromA(4) lepton flavor symmetry (2008)
  • Author(s): Hajime Ishimori, Tatsuo Kobayashi, Yuji Omura, Morimitsu Tanimoto
  • Journal Title: JHEP 0812 : 082
• [Journal Article] Tri-bimaximal Mixing from Cascades (2008)
  • Author(s): Naoyuki Haba, Ryo Takahashi, Morimitsu Tanimoto, Koichi Yoshioka
  • Journal Title: Phys.Rev. D78 : 113002
• [Journal Article] Soft supersymmetry breaking terms fromD(4) x Z(2) lepton flavor symmetry (2008)
  • Author(s): Hajime Ishimori, Tatsuo Kobayashi, Hiroshi Ohki, Ryo Takahashi, MorimitsuTanimoto
  • Journal Title: Phys.Rev. D77, 115005
• [Journal Article] D(4) Flavor Symmetry for Neutrino Masses and Mixing (2008)
  • Author(s): Hajime Ishimori, Tatsuo Kobayashi, Hiroshi Ohki, Ryo Takahashi, Morimitsu Tanimoto,
  • Journal Title: Physics Letters B662 Pages: 178-184
• [Journal Article] Deviation from tri-bimaximal neutrino mixing in A(4) flavor symmetry (2008)
  • Author(s): Mizue Honda, Morimitsu Tanimoto
  • Journal Title: Progress of Theoretical Physics 119 Pages: 583-598
• [Journal Article] False Vacuum in the Supersymmetric Mass Varying Neutrinos Model (2008)
  • Author(s): Ryo Takahashi, Morimitsu Tanimoto
  • Journal Title: Phys.Rev. D77 Pages: 45015-45015
• [Journal Article] Soft supersymmetry breaking terms from D(4) xz (2) lepton flavor symmetry (2008)
  • Author(s): Hajime Ishimori
  • Journal Title: Physical Review D 77 Pages: 115005-115005
  • Peer Reviewed
• [Journal Article] Soft supersymmetry breaking terms from A(4) lepton flavor symmetry (2008)
  • Author(s): Hajime Ishimori
  • Journal Title: JHEP 0812 Pages: 82-82
  • Peer Reviewed
• [Journal Article] Tri-bimaximal Mixing from Cascades (2008)
  • Author(s): Naoyuki Haba
  • Journal Title: Physical Review D 78 Pages: 113002-113002
  • Peer Reviewed
• [Journal Article] False Vacuum in the Supersymmetric Mass Varying Neutrinos Model (2008)
  • Author(s): Ryo Takahashi,
  • Journal Title: Physical Review D 77
  • Peer Reviewed
• [Journal Article] Deviation from tri-bimaximal neutrino mixing in A (4) flavor symmetry (2008)
  • Author(s): Mizue Honda
  • Journal Title: Progress of Theoretical Physics (印刷中)
  • Peer Reviewed
• [Journal Article] D (4) Flavor Symmetry for Neutrino Masses and Mixing (2008)
  • Author(s): Hajime Ishimori
  • Journal Title: Physics Letters B (印刷中)
  • Peer Reviewed
• [Journal Article] Flavor Symmetry and Vacuum Aligned Mass Textures (2007)
  • Author(s): Satoru Kaneko, Hideyuki Sawanaka, Takaya Shingai, Morimitsu Tanimoto, Koichi Yoshioka
  • Journal Title: Progress of Theoretical Physics 117 Pages: 161-181
  • NAID: 110006164042
• [Journal Article] Examining the Geometrical Model with Inverted Mass Hierarchy for Neutrinos (2007)
  • Author(s): Mizue Honda, Morimitsu Tanimoto
  • Journal Title: Phys. Rev. D75 Pages: 96005-96005
• [Journal Article] Can symmetric texture reproduce unitarity triangle and m(b)/m(tau)? (2007)
  • Author(s): Masako Bando, Satoru Kaneko, Midori Obara, Morimitu Tanimoto
  • Journal Title: Progress of Theoretical Physics 116 Pages: 1105-1115
• [Journal Article] Soft Supersymmetry Breaking at Heavy Chiral Threshold (2007)
  • Author(s): Hiroyuki Matsuura, Hiroaki Nakano, Koichi Yoshioka
  • Journal Title: Progress of Theoretical Physics 117 Pages: 395-400
  • NAID: 110006224335
• [Journal Article] Flavor Symmetry and Vacuum Aligned Mass Textures (2007)
  • Author(s): Satru Kaneko ほか4名
  • Journal Title: Progress of Theoretical physics 117,1 Pages: 161-181
• [Journal Article] Quark Masses and Mixing with A4 Family Symmetry (2006)
  • Author(s): Ernest Ma, Hideyuki Sawanaka, Morimitsu Tanimoto
  • Journal Title: Physics Letters 641B Pages: 301-304
• [Journal Article] The Effect of supersymmetry breaking in the mass varying neutrinos (2006)
  • Author(s): Ryo Takahashi, Morimitsu Tanimoto
  • Journal Title: Phys. Rev. D74 Pages: 55002-55002
• [Journal Article] Speed of sound in the mass varying neutrinos scenario (2006)
  • Author(s): Ryo Takahashi, Morimitsu Tanimoto
  • Journal Title: JHEP 0605 Pages: 21-21
• [Journal Article] A Higher-dimensional origin of the inverted mass hierarchy for neutrino (2006)
  • Author(s): M. Tanimoto, T. Yanagida
  • Journal Title: Physics Letters B633 Pages: 567-572
• [Journal Article] mu-tau antisymmetry and neutrino mass matrices (2006)
  • Author(s): Walter Grimus, Satoru Kaneko, Luis Lavoura, Hideyuki Sawanaka, Morimitsu Tanimoto
  • Journal Title: JHEP 0601 Pages: 110-110
• [Journal Article] Embedding the texture of the neutrino mass matrix into the MaVaNs scenario (2006)
  • Author(s): Mizue Honda, Ryo Takahashi, Morimitsu Tanimoto
  • Journal Title: JHEP 0601 Pages: 42-42
• [Journal Article] Model of mass varying neutrinos in SUSY (2006)
  • Author(s): Ryo Takahashi, Morimitsu Tanimoto
  • Journal Title: Physics Letters B633 Pages: 675-680
• [Journal Article] Can symmetric texture reproduce unitarity triangle and m(b)/m(tau)? (2006)
  • Author(s): Masako Bando ほか3名
  • Journal Title: Progress of Theoretical physics 116,5 Pages: 1105-1115
• [Journal Article] Quark Masses and Mixing with A4 Family Symmetry (2006)
  • Author(s): Ernest Ma ほか2名
  • Journal Title: Physics Letter B 641,2 Pages: 301-304
• [Journal Article] The Effect of supersymmetry breaking in the mass varying neutrinos (2006)
  • Author(s): Ryo Takahashi ほか1名
  • Journal Title: Physical review D 74,5 Pages: 55002-55002
• [Journal Article] Speed of sound in the mass varying neutrinos scenario (2006)
  • Author(s): Ryo Takahashi ほか1名
  • Journal Title: JHEP 0605 Pages: 21-21
• [Journal Article] A Higher-Dimensional Origin of the Inverted Mass Hierarchy for Neutrino (2006)
  • Author(s): Morimitsu Tanimoto
  • Journal Title: Physics Letters B 633 Pages: 567-572
• [Journal Article] Mu-Tau Antisymmetry and Neutrino Mass Matrices (2006)
  • Author(s): Walter Grimus
  • Journal Title: JHEP 0601 Pages: 110-110
• [Journal Article] Embedding the Texture of the Neutrino Mass Matrix into the MaVaNs Scenario (2006)
  • Author(s): Mizue Honda
  • Journal Title: JHEP 0601 Pages: 42-42
• [Journal Article] Model of Mass Varying Neutrinos in SUSY (2006)
  • Author(s): Ryo Takahashi
  • Journal Title: Physics Letters B 633 Pages: 675-680
• [Journal Article] Cosmological family asymmetry and CP violation (2005)
  • Author(s): T. Fujihara, S. Kaneko, Sin Kyu Kang, D. Kimura, T. Morozumi, M. Tanimoto
  • Journal Title: Phys.Rev. D72 Pages: 160-160
  • NAID: 120000880422
• [Journal Article] Hybrid Textures of Neutrinos (2005)
  • Author(s): Satru kaneko, Hideyuki Sawanaka, Morimitsu Tanimoto
  • Journal Title: JHEP 0508 Pages: 73-73
• [Journal Article] Cosmological Family Asymmetry and CP Violation (2005)
  • Author(s): T.Fujiwara
  • Journal Title: Physical Review D 72 Pages: 16006-16006
• [Journal Article] Hybrid Textures of Neutrinos (2005)
  • Author(s): Satoru Kaneko
  • Journal Title: JHEP 0508 Pages: 73-73
• [Presentation] Soft supersymmetry breaking terms from A(4) lepton flavor symmetry (2009)
  • Author(s): Hajime Ishimori
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学(東京)
  • Year and Date: 2009-03-30
• [Presentation] D4 Flavor Symmetry in SUSY (2008)
  • Author(s): Hajime Ishimori
  • Organizer: 日本物理学会
  • Place of Presentation: 近畿大学(東大阪市)
  • Year and Date: 2008-03-24
• [Presentation] False Vacuum in the Supersymmetric Mass Varying Neutrino Model (2008)
  • Author(s): Morimitsu Tanimoto
  • Organizer: DSU'08, 4th International Workshop on the Dark Side of the Universe
  • Place of Presentation: The British University in Egypt (BUE), Cairo, Egypt
• [Presentation] ダークエネルギーと超対称性理論におけるMass Varying Neutrinos (2007)
  • Author(s): Ryo Takahashi
  • Organizer: 日本物理学会
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2007-09-24
• [Presentation] Mass and mixing of quark-lepton in the nonabelian discrete symmetry (2006)
  • Author(s): Morimitsu Tanimoto
  • Organizer: Challenges in Particel Astrophysics
  • Place of Presentation: Hanoi, Vietnam
• [Presentation] Mass Varying Neutrinos in SUSY (2006)
  • Author(s): Morimitsu Tanimoto
  • Organizer: Planck'06 From the Planck scale to the ElectroWeak scale
  • Place of Presentation: Paris, France.
• [Presentation] Mass Varying Neutrinos in SUSY (2006)
  • Author(s): Morimitsu Tanimoto
  • Organizer: Neutrino Oscillation in Venice Feb.
  • Place of Presentation: Venice, Italy
• [Book] 新潟で探るニュートリノの不思議な世界 (2006)
  • Author(s): 谷本盛光, 田村詔生
  • Publisher: 新潟大学ブックレット, 新潟大学大学院自然科学研究科
• [Remarks] 谷本盛光「ニュートリノは宇宙の果てまで」,特集 : 素粒子像の探求, 数理科学、サイエンス社(2006) 12 月号, 31-36.