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Dynamical Symmetry Breaking and Effective Field Theories

动力学对称破缺和有效场论

基本信息

批准号：
14340072
负责人：
YAMAWAKI Koichi
金额：
$ 8.51万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14340072/
关键词：
Origin of Mass Strong Coupling Gauge Theory Dynamical Symmetry Breaking Chiral Phase Transition Top Quark Condensate Hidden Local Symmetry Extra Dimensions Light Cone Quantization 複合ヒッグス模型有効場の理論

项目摘要

In this project we promoted study of strong coupling gauge theories both by microsoopic and macroscopic approaches. In particular,1)Dynamical Symmetry Breaking, a microscopic one, was advanced by the dynamical analyses of the top quark oondensate model with extra dimensions, chiral phase transition of large flavor -number QCD and the application to model buildings (little Higgs, Higgsless models, etc). The phase structure of the strong coupling gauge theories was also revealed.2)Effective Field Theories, a macroscopic approach, developed greatly, based on the Hidden Local Symmetry(HLS). By publishing a review article of 233 pages in Physics Reports which is an overall review of our achievement for the quantum effects of the HLS, we established the HLS chiral perturbation theory including the vector meson and made further development of the Vector Manifestation which we proposed earlier for the chiral phase transition in the large flavor-number QCD.1)and 2)are becoming more intimately c … More onnected by recent development of deconstructed/holographic QCD analysis of the gauge theories with extra dimensions which clarified relevance of HLS in the effective field theory of QCD.As to the light cone quantization we made considerable progress in understanding the spontaneously broken symmetry and recovery of Lorentz invariance of DLCQ (Discrete Light Cone.As parts of the present project, we had the following events :Held an international workshop "Strong Coupling Gauge Theories and Effective Field Theories (SCGT02)" at Nagoya University in December 2002. It was a very successful meeting with attendants about 120 (about 40 from abroad) including many top-ranked physicists. (The proceedings were published by the Worldscientific Publishing Co., ISBN 981-238-437-5).Held a small international workshop "Dynamical Symmetry Breaking (DSB04)" at Nagoya University, with 50 participants (6 from abroad) in December 20004. It was also very successful (Proceedings will be published).Organized lectures by Professor't Hooft, a Nobel laureate, and discussion sessions with him in February 2004. Less

在这个项目中，我们通过微观和宏观方法促进了强耦合规范理论的研究。特别是，1）动态对称破缺这一微观破缺问题，通过超维顶夸克稠密模型的动力学分析、大味数QCD的手性相变以及在模型构建（小希格斯模型、无希格斯模型等）中的应用，得到了进展。强耦合规范理论的相结构也被揭示。2)基于隐局域对称性(HLS)的宏观方法有效场论得到了长足的发展。通过在《Physics Reports》上发表了一篇长达 233 页的综述文章，全面回顾了我们在 HLS 量子效应方面的成就，建立了包括矢量介子的 HLS 手性微扰理论，并进一步发展了我们之前针对大味数 QCD 中的手性相变提出的矢量表现。1）和 2）随着最近发展的具有额外维度的规范理论的解构/全息QCD分析，阐明了HLS在QCD有效场论中的相关性。关于光锥量子化，我们在理解DLCQ（离散光锥）的自发破缺对称性和洛伦兹不变性的恢复方面取得了相当大的进展。作为当前项目的一部分，我们举办了以下活动：举办了“强耦合规范”国际研讨会理论和有效场论（SCGT02）”于2002年12月在名古屋大学举行。这是一次非常成功的会议，与会者约120人（约40人来自国外），其中包括许多顶级物理学家。（会议记录由世界科学出版公司出版，ISBN 981-238-437-5）。举办了一个小型国际研讨会“动态对称破缺（DSB04）”在名古屋大学，20004年12月参加者50人（国外6人）。也很成功（论文集即将出版）。2004年2月组织了诺贝尔奖得主't Hooft教授的讲座，并与他进行了讨论。少