GRK 570: Gauge theories - experimental tests and theoretical foundations

GRK 570：规范理论 - 实验测试和理论基础

• 批准号: 272933
• 金额: --
• 依托单位: Johannes Gutenberg-Universität Mainz
• 依托单位国家: 德国
• 项目类别: Research Training Groups
• 财政年份: 1999
• 资助国家: 德国
• 起止时间: 1998-12-31 至 2007-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/272933?language=en
• 关键词: GRK; 570; Gauge; theories; experimental

In the last 25 years gauge theories have turned out to be the most promising theories to describe the fundamental interactions between the elementary constituents of matter. Precursor and model of such theories was, since 1930, quantum electrodynamics, to which in 1967 the electroweak theory was added as the unified theory ofelectromagnetic and weak interactions. Finally in 1974 also the theory of strong interactions between the constituents of hadrons, quantumchromodynamics, could be formulated along the same principles. In the last decade physics has made considerable progress towards the aim ofunderstanding all forces in a unified theory. Only the full integration of gravity is missing. Gauge theories are extremely successful at high energies. Application of quantum chromodynamics in the medium energy range is still difficult. Here "effective models", like e.g. "chiral perturbation theory", with a QCD background give precise predictions which can be tested experimentally.In this research training group both experimental and theoretical groups work together in the exploration of gauge theories. The experiments take place at the accelerators of CERN (SPS and LHC), at the US research laboratory Fermilab near Chicago, at the Mainz microtron MAMI and at the neutrino telescop AMANDA.

在过去的25年里，规范理论被证明是描述物质基本成分之间基本相互作用的最有前途的理论。这种理论的先驱和模型是自1930年以来的量子电动力学，1967年加入了电弱理论，作为电磁和弱相互作用的统一理论。最后，在1974年，强子成分之间的强相互作用理论--量子色动力学--也可以按照同样的原理建立起来。在过去的十年里，物理学朝着在统一理论中理解所有力的目标取得了长足的进步。只有重力的完全整合缺失了。规范理论在高能区非常成功。量子色动力学在中能区的应用仍然很困难。在这里，具有QCD背景的“有效模型”，例如“手征微扰理论”，给出了可以在实验上检验的精确预测。在这个研究培训小组中，实验小组和理论小组一起探索规范理论。这些实验在欧洲核子研究中心的加速器(SPS和LHC)、芝加哥附近的美国费米拉实验室、美因茨微加速器Mami和中微子望远镜阿曼达进行。