Electroweak Symmetry Breaking, Flavor Mixing and the LHC

电弱对称破缺、风味混合和大型强子对撞机

• 批准号: 0709742
• 负责人: Mu-Chun Chen
• 金额: $ 12万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-06-01 至 2010-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0709742&HistoricalAwards=false
• 关键词: Electroweak; Symmetry; Breaking; Flavor; Mixing

The proposed research plans aim at utilizing the available data coming from the Large Hadron Collider (LHC) as well as neutrino experiments to answer long-standing questions in particle physics. The goal of this research is to further our understanding in the nature of electroweak symmetry breaking as well as the origin of flavor mixing and CP violation. The PI will approach these outstanding questions in particle physics by constructing various candidate models for beyond the standard model physics and by examining the experimental consequences of these models at the LHC and in underground experiments for proton decays and neutrinos. New data from Collider experiments will be utilized to guide the construction of models that solve the gauge hierarchy problem, including those with Supersymmetry, extra dimensions and a strongly coupled Higgs sector. Methods to analyze the data distinguish between competing models will be developed. Properties of the neutrinos and implications for proton decays in these models will be analyzed. The results of these studies may point to the right route to the further unification of GUT and the family symmetries. Novel origins of CP violation in extra dimensions or in a strongly coupled Higgs sector will be searched for, and their implications for leptogenesis will be studied. The outcome of this investigation willhopefully shed light on the origin of the asymmetry between matter and anti-matter in the Universe. Possible connections between the mechanism behind the electroweak symmetry breaking and the dynamics for flavor mixing will be investigated. The broader impacts of this research are to promote the public interests in and appreciations for the upcoming exciting results in particle physics, through an active participation of the PI in the UC Irvine's Quark Net Program. These efforts are complemented by the training of graduate students and postdoctoral researchers as well as by introducing undergraduate students into the frontiers of research in particle physics.

拟议的研究计划旨在利用来自大型强子对撞机（LHC）以及中微子实验的可用数据来回答粒子物理学中长期存在的问题。本研究的目的是加深我们对电弱对称性破缺的本质以及味混合和CP破坏的起源的理解。PI将通过构建超越标准模型物理学的各种候选模型，并通过检查这些模型在LHC和质子衰变和中微子地下实验中的实验结果，来解决粒子物理学中这些悬而未决的问题。来自对撞机实验的新数据将用于指导解决规范层次问题的模型的构建，包括那些具有超对称性，额外维度和强耦合希格斯扇区的模型。将开发用于分析竞争模型之间的数据区分的方法。中微子的性质和质子衰变的影响，在这些模型将进行分析。这些研究结果可能为进一步统一。新的起源CP违反额外的维度或在一个强耦合的希格斯部门将被搜索，并将研究其对leptogenesis的影响。这项研究的结果将有望揭示宇宙中物质和反物质之间不对称性的起源。我们将探讨电弱对称性破缺的机制与味道混合的动力学之间可能的联系。这项研究的更广泛的影响是通过PI积极参与加州大学欧文分校的夸克网计划，促进公众对粒子物理学即将取得的令人兴奋的成果的兴趣和赞赏。这些努力得到了研究生和博士后研究人员的培训以及将本科生引入粒子物理学研究前沿的补充。