Understanding electroweak symmetry breaking from LHC data

了解大型强子对撞机数据中的电弱对称性破缺

• 批准号: 386346-2013
• 负责人: Grégoire, Thomas
• 金额: $ 4.37万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=550386
• 关键词: Understanding; electroweak; symmetry; breaking; LHC

The Standard Model(SM) of particle physics gives a description of all the particles and forces known to date. Over the past 50 years it has been tested to exquisite precision. The theoretical description of the Standard Model is based on an elegant symmetry principle. It allows to describe of all interactions in term of only three parameters, namely the gauge coupling constants. However, the same principle predicts that all the particles of the SM should be massless. This is not the case, which means that the symmetry must somehow be broken. This phenomenon is called electroweak symmetry breaking(EWSB) and the physics responsible for it remains to a large extend unknown and uncovering it has been one of the main quests of high energy physics, both theoretical and experimental for the past two or three decades.

粒子物理的标准模型（SM）给出了迄今已知的所有颗粒和力的描述。在过去的50年中，已将其测试为精确的精度。标准模型的理论描述基于优雅的对称原理。它允许仅以三个参数（即量规耦合常数）描述所有相互作用。但是，相同的原理预测SM的所有粒子都应无质量。事实并非如此，这意味着对称性必须以某种方式被打破。这种现象称为Electroweak对称性破坏（EWSB），并且负责它的物理学仍然是一个很大的延伸未知，并且发现它一直是高能物理学的主要问题之一，在过去的两到三十年中，理论和实验性都是如此。