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複合粒子の低エネルギ-有効理論とTeV領域の複合フォ-クレプトン模型

Research Project

Project/Area Number 62540202
Research Category

Grant-in-Aid for General Scientific Research (C)

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

Principal Investigator

山脇 幸一  名古屋大学, 理学部, 助手 (90135301)

Co-Investigator(Kenkyū-buntansha) 坂東 昌子  愛知大学, 教養部, 教授 (20025365)
沢田 昭二  名古屋大学, 理学部, 助教授 (50022546)
大貫 義郎  名古屋大学, 理学部, 教授 (90022532)
Project Period (FY) 1987 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1989: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1988: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1987: ¥800,000 (Direct Cost: ¥800,000)
Keywords対称性の力学的破れ / 複合ヒグス模型 / トップクォ-ク凝縮 / テクニカラ-理論 / 非自明紫外固定点 / 大きな異常次元 / 相構造 / 強結合理論 / テクニカラー / 複合ヒッグス / スケール不変テクニカラー / 紫外固定点 / 異常次元 / 臨界曲線 / 隠れた局所対称性 / 非線型シグマ模型 / 複合ゲージボソン / ノントリヴィアル紫外固定点
Research Abstract

テクニカラ-模型および前年度提唱した(Miransky・棚橋誠治・山脇)トップクォ-ク凝縮模型("トップモ-ド標準模型")の現象論的研究と、それら複合ヒグス模型の基礎となった非自明紫外固定点と大きな異常次元とをもつ力学系、とくに対称性の力学的破れに関する相構造の研究を中心に展開した。先ず、上記模型に本質的である4体フェルミ相互作用の役割を明らかにするため、はしご近似を越える近似として1/N展開法を用いて時空の次元が4未満(2<D<4)のとき(くり込み可能な4体フェルミ理論)、非自明紫外固定点と大きな異常次元γ_m=D-2を見出した(菊川芳夫・山脇)。これはD=4での4体フェルミ相互作用を伴なうゲ-ジ理論のはしご近似による分析と類似の結果であり、非摂動論的くり込み理論への手掛りを与えるものと思われる。また、トップクォ-ク凝縮模型の4体フェルミ相互作用の起源として、思いゲ-ジボソン交換(強結合ゲ-ジ相互作用)と重いスカラ-ボソン交換(強結合湯川相互作用)の両方の相構造をはしご近似で調べ、4体フェルミ相互作用と類似の結果を得た(近藤慶一・棚橋・山脇)。これは格子モンテカルロ法の結果とも整合する。一方、トップクォ-ク凝縮模型におけるヒグスボソンの質量m_Hをはしご近似の枠内で計算し、ゲ-ジ相互作用が少しでもあると、4体フェルミのみの場合の結果m_H【similar or equal】2m_t(m_tはトップクォ-クの質量)からずれてm_H【similar or equal】√<2>m_tになることを見出した(首藤晋・棚橋・山脇)。これは今後の実験的検証にとって重要である。また、漸近自由ゲ-ジ理論(QCD等)と4体フェルミ相互作用の共存する力学系の相構造について、前年度の解析的結果(Miransky・野々山龍彦・山脇)にひき続きコンピュ-タによる数値的研究を行ない、より詳しい知見を得た(中谷一・首藤・山脇)。

Report

(3 results)
  • 1989 Annual Research Report
  • 1988 Annual Research Report
  • 1987 Annual Research Report
  • Research Products

    (28 results)

All Other

All Publications (28 results)

  • [Publications] K.-I.Aoki: "How Does Technicolor Survive the FCNC Syndrome?" Prog.Theor.Phys.82. 388-395 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] K.Kondo: "Critical Line and Dilaton in Scale-Invariant QED." Phys.Rev.D. 39. 2430-2433 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] V.A.Miransky: "On Gauge Theories with Additional Four-Fermion Interaction." Mod.Phys.Lett.A4. 129-135 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] V.A.Miransky: "Dynamical Electroweak symmetry Breaking with the Large Anomalous Dimension and Quark Condensate." Phys.Lett.B. 221. 177-183 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] V.A.Miransky: "Is the t Quark Responsible for the Mass of W and Z Bosons?" Mod.Phys.Lett.A4. 1043-1053 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] T.Nonoyma: "Phase Structure and Dilatonin QED with Four-Fermion Interaction." Prog.Theor.Phys.81. 1238-1247 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] V.A.Miransky: "Ultraviolet Fixed Point Structure of Renormalizable Four-Fermion Theory in Less than Four Dimensions." Phys.Lett.B. 234. 497-502 (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] M.Omote: "Galelean Covariance and Schrodinger Equation." Fortschr.Phys.37. 933-950 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] K.-I.Aoki: "Landau Gauge Peculiarity in QED Schwinger-Dyson Equation." Prog.Theor.Phys.81. 866-877 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] K.-I.Aoki: "Asymptotically Free versus Asymptotically Non-Free Gauge Theories." Prog.Theor.Phys.82. 1151-1163 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] K.Yamawaki: "Procc.1988 International Workshop on New Trends in Strong Coupling Gauge Theories." World Scientific, 22 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Y.Ohnuki: "Proc.of the 3rd Int.Conf.on Path Integrals from meVto MeV." World scientific, 12 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] M.Omote: "Symmetry of Science III" Plenum Press, 8 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Masako,Gando: Progress of Theoretical Physiscs. 79. 1140-1166 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Masako,Gando: Physics Reports. 164. 217-314 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] V.A.Miransky: Modern Physics Letters A. A4. 129-135 (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] Kei-ichi,Kondo: Physical Review D. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] V.A.Miransky: Modern Physics Letters A. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] Koichi,Yamawaki: "Proceedings of 12th Johns Hopkins Workshop on Current Problems in Particle Theory,Baltimore" World Scientific Publishing Co., (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Koichi,Yamawaki: "Proceedings of 1988 International Workshop on New Trends in Strong Coupling Gauge Theories,Nagoya" World Scientific Publishing Co., (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] Koichi Yamawaki: Physical Review D(Rapid Communications). 25. 412-415 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Masako Bando: Physical Review Letters. 59. 389-392 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Masako Bando: Progress of Theoretical Physics. 79. No.5 (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] Masako Bando: Physics Reports. (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] Takanori Fujiwara: Progress of Theoretical Physics. 77. 1463-1483 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Y. Igarashi: Progress of Theoretical Physics. 78. 358-369 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Koichi Yamawaki: "in "Superstrings, Cosmology and Composite Structure"" World Scientific Publishing Co., Singapore, 9/593 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Koichi Yamawaki: "in "Proceedings of 1987 International Workshop on Low Energy Effective Theory of OCD"" Nagoya University, 24/225 (1987)

    • Related Report
      1987 Annual Research Report

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Published: 1987-04-01   Modified: 2016-04-21  

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