Strong Coupling Gauge Theories and Origin of Mass

2008 Fiscal Year Final Research Report

• Project/Area Number: 18340059
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Nagoya University
• Principal Investigator: YAMAWAKI Koichi Nagoya University, 大学院理学研究科, 教授 (90135301)
• Co-Investigator(Kenkyū-buntansha): TANABASHI Masaharu 名古屋大学, 大学院・理学研究科, 教授 (00270398) ; HARADA Masayasu 名古屋大学, 大学院・理学研究科, 教授 (40311716) ; MAEKAWA Nobuhiro 名古屋大学, 大学院・理学研究科, 准教授 (40273429)
• Co-Investigator(Renkei-kenkyūsha): UEHARA Shozo 宇都宮大学, 工学部, 教授 (20168652) ; KIKUKAWA Yoshio 東京大学, 総合文化研究科, 准教授 (20252421) ; SUGIMOTO Shigeki 東京大学, 数物連携宇宙機構, 教授 (80362408)
• Project Period (FY): 2006 – 2008
• Keywords: ウォーキングテクニカラー / 対称性の力学的破れ / 隠れた局所対称性 / コンフォーマル固定点 / 強結合ゲージ理論 / ホログラフィックQCD / 余剰次元 / 異常次元

Research Abstract

質量の起源に対して、強結合ゲージ理論による複合ヒッグス模型を研究した。とくにウォーキングテクニカラー模型におけるSパラメーターをシュウィンガー・ダイソン方程式とベーテ・サルピーター方程式に基づく直接的計算とホログラフィーの手法による方法とで評価し、いずれも実験との矛盾を緩和する方向性を見出した。また、トップクォーク凝縮を含む模型の可能性を分析し、新たな制限を見出した。国際会議SCGTO6を開催した。

Research Products

• [Journal Article] S Parameter in the Holographic Walking/Conformal Technicolor (2008)
  • Author(s): K. Haba, S. Matsuzaki, K. Yamawaki
  • Journal Title: Prog. Theor. Phys 120 Pages: 691-721
• [Journal Article] Anatomy of Top-Mode Extended Technic olor Model (2008)
  • Author(s): H. Fukano, K. Yamawaki
  • Journal Title: Prog. Theor. Phys 119 Pages: 429-460
• [Journal Article] Z Boson Propagator Correction in Techni color Theories with ETC Effects Included (2007)
  • Author(s): M. Kurachi, R. Shrock, K. Yamawaki
  • Journal Title: Phys. Rev. D 76 Pages: 035003
• [Presentation] Quest for Dynamical Origin of Mass (2009)
  • Author(s): 山脇幸一
  • Organizer: 湯川国際セミナー(YKIS)
  • Place of Presentation: 京都大学基礎物理学研究所
  • Year and Date: 20090426-0325
• [Presentation] 対称性の力学的破れの物理とその発展 (2009)
  • Author(s): 山脇幸一
  • Organizer: 日本物理学会第64回年次大会、南部陽一郎氏ノーベル物理学賞受賞記念シンポジウム
  • Place of Presentation: 立教大学
  • Year and Date: 20090326-29
• [Presentation] S-Parameter in Large Nf QCD from Vertex Ansatz (2008)
  • Author(s): 羽場一基
  • Organizer: 日本物理学会2008年大会
  • Place of Presentation: 山形大学
  • Year and Date: 20080920-23
• [Presentation] Conformal Phase Transition and Large Nf QCD (2008)
  • Author(s): 山脇幸一
  • Organizer: Mini-Workshop on Large Nf QCD
  • Place of Presentation: Nagoya University
  • Year and Date: 20080512-13
• [Presentation] Holographic Walking/Conformal Technicolor Workshop on From Strings to Things: String Theory Methods in QCD and Hadron Physics (2008)
  • Author(s): 山脇幸一
  • Organizer: Institute for Nuclear Theory
  • Place of Presentation: University of Washington, Seattle, USA
  • Year and Date: 20080324-0606
• [Presentation] Holographic QCD from the view of Hidden Local Symmetry and Walking/ Conformal Technicolor (2007)
  • Author(s): 山脇幸一
  • Organizer: Radcliffe Institute for Advanced Study Exploratory and Advanced Seminars on Higgsless Electroweak Symmetry Breaking in the Large Hadron Collider - Era
  • Place of Presentation: Harvard University, USA
  • Year and Date: 20070731-0804
• [Presentation] Walking over the Composites - In the Spirit of Sakata - (2006)
  • Author(s): 山脇幸一
  • Organizer: 2006 International Symposium : The Jubilee of the Sakata Model
  • Place of Presentation: Nagoya University, Nagoya, Japan
  • Year and Date: 20061125-26
• [Presentation] Higgsless Models and Deconstruction (2006)
  • Author(s): 棚橋誠治
  • Organizer: International Workshop : Origin of Mass and Strong Coupling Gauge Theories (SCGT 06)
  • Place of Presentation: Nagoya University, Nagoya, Japan
  • Year and Date: 20061121-24
• [Presentation] Toward a Top-Mode ETC (2006)
  • Author(s): 深野秀徳
  • Organizer: International Workshop : Origin of Mass and Strong Coupling Gauge Theories (SCGT 06)
  • Place of Presentation: Nagoya University, Nagoya, Japan
  • Year and Date: 20061121-24
• [Presentation] Electroweak Theory on the Lattice with Exact Gauge Invariance (2006)
  • Author(s): 菊川芳夫
  • Organizer: International Workshop : Origin of Mass and Strong Coupling Gauge Theories (SCGT 06)
  • Place of Presentation: Nagoya University, Nagoya, Japan
  • Year and Date: 20061121-24
• [Presentation] Dropping ρ and A1 Meson Masses at the Chiral Phase Transition in the Generalized Hidden Local Symmetry (2006)
  • Author(s): 原田正康
  • Organizer: International Workshop : Origin of Mass and Strong Coupling Gauge Theories (SCGT 06)
  • Place of Presentation: Nagoya University, Nagoya, Japan
  • Year and Date: 20061121-24
• [Presentation] Mesons and Baryons from String Theory (2006)
  • Author(s): 杉本茂樹
  • Organizer: International Workshop : Origin of Mass and Strong Coupling Gauge Theories (SCGT 06)
  • Place of Presentation: Nagoya University, Nagoya, Japan
  • Year and Date: 20061121-24
• [Book] Proceedings of International Symposium pnΛ50The Jubilee of the Sakata Model" Progress of Theoretical Physics (2007)
  • Author(s): 原田正康、大貫義郎、沢田昭二、山脇幸一(編集)
  • Total Pages: 167
  • Publisher: 理論物理学刊行会
• [Book] "Proceedings of International Symposium pnΛ50The Jubilee of the Sakata Model" Progress of Theoretical Physics (原田正康、大貫義郎、沢田昭二、山脇幸一(編集)) (2007)
  • Author(s): 山脇幸一
  • Total Pages: 167
  • Publisher: 理論物理学刊行会
• [Book] Proceedings of International Workshop : Origin of Mass and Strong Coupling Gauge Theories (2007)
  • Author(s): 原田正康、棚橋誠治、山脇幸一
  • Total Pages: 424
  • Publisher: World Scientific Publishing Company, Singapore
• [Book] Proceedings of International Workshop : Origin of Mass and Strong Coupling Gauge Theories (SCGT 06)(原田正康、棚橋誠治、山脇幸一(編集)) (2007)
  • Author(s): 深野秀徳、山脇幸一
  • Total Pages: 314-324
  • Publisher: World Scientific Publishing Company, Singapore