Probing Electroweak Symmetry Breaking in High Energy Collisions

探测高能碰撞中的电弱对称破缺

• 批准号: 0555545
• 负责人: Chien-Peng Yuan
• 金额: --
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-07-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0555545&HistoricalAwards=false
• 关键词: Probing; Electroweak; Symmetry; Breaking; Energy; Probing; Electroweak; Symmetry; Breaking; Energy

The Standard Model (SM) of elementary particle physics is extremelysuccessful in explaining and predicting experimental data, spanning inenergy from the atomic scale to the Z boson mass scale, and sensitive to the fundamental interactions of strong, weak and electromagnetic forces. It has been tested by a large number of experiments at CERN LEP, SLAC SLC and the Fermilab Tevatron colliders at the level of a few tenths of percent. The long awaited discovery of the top quark at the Tevatron in 1995 gave another strong confirmation of the SM. However, the mechanism of the Electroweak Symmetry Breaking (EWSB) which generates masses for the W and Z bosons as well as the fermions, and leaves the electromagnetic gauge symmetry intact is via the Higgs boson which has not yet been found. In addition, the SM cannot explain the hierarchical pattern of fermion masses. It is therefore widely believed that at high energies, or in very high precision measurements, deviation from the SM will appear in experimental data to signal the presence of new physics. This award supports the development orvarious theoretical calculations and computational tools to enable probing the EWSB mechanism in high energy collisions at the Fermilab Tevatron and CERN Large Hadron Collider.While Einstein described the connection between mass and energy over 100 years ago, as of today, it is still not known to anyone, includingphysicists, where the mass (M ) of matter comes from. This program of research has as its goal addressing the questions related to the origin of the mass of matter. The achievement of these projects will contribute to our understanding of the fundamental interactions in Nature. The scientific results and the developed numerical programs will be made available via the World Wide Web.

基本粒子物理学的标准模型（SM）在解释和预测实验数据方面非常成功，从原子尺度到Z玻色子质量尺度跨越无效，并且对强，弱和电磁力的基本相互作用敏感。在CERN LEP，SLAC SLC和Fermilab Tevatron Colliders的水平上，已通过大量实验进行了测试。期待已久的Quark在1995年在Tevatron上发现了最高的夸克，从而再次确认了SM。但是，电动对称性断裂的机理（EWSB）生成了W和Z玻璃体以及费米子的质量，并通过HIGGS玻色子（尚未找到）尚未找到电磁量规对称性完整。此外，SM无法解释费米昂质量的分层模式。因此，人们普遍认为，在高能量或在很高的精度测量中，与SM的偏差将出现在实验数据中，以表明存在新物理学的存在。该奖项支持开发的理论计算和计算工具，以启用在Fermilab Tevatron和Cern大型强子碰撞中探索高能碰撞中的EWSB机制。EINSTEIN描述了100年前的质量和能源之间的联系，截至今天到今天，众所周知的是，包括Phyphysicist的任何人，包括Massicist，Matter Matter（Mats Matter），来自Mass Matter（M Matter）。该研究计划的目标是解决与物质质量起源有关的问题。这些项目的实现将有助于我们理解自然界的基本互动。科学结果和开发的数值程序将通过万维网提供。