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）的可用数据以及中微子实验，以回答粒子物理学长期存在的问题。这项研究的目的是进一步了解我们对Electroweak对称性破坏的性质以及风味混合和CP违规的起源。 PI将通过为超越标准模型物理学的各种候选模型构建粒子物理学中的这些杰出问题，并通过检查LHC上这些模型的实验后果以及质子衰减和中微子的地下实验中的实验后果。将利用来自对撞机实验的新数据来指导解决量表层次结构问题的模型的构建，包括具有超对称性，额外维度和强有耦合的Higgs扇区的模型。将开发分析数据区分竞争模型的方法。中微子的性质及其对这些模型中质子衰变的影响将进行分析。这些研究的结果可能指出了肠道和家庭对称性进一步统一的正确途径。将搜索CP违规的新起源，或者在强烈耦合的Higgs部门中进行搜索，并将研究它们对瘦素发生的影响。这项研究的结果将阐明宇宙中物质和反物质之间不对称的起源。将研究Electroweak对称性破裂背后的机制与风味混合动力学之间的可能连接。这项研究的更广泛的影响是通过PI积极参与UC Irvine的Quark Net计划来促进即将到来的粒子物理学成果的公共利益和欣赏。这些努力得到了研究生和博士后研究人员的培训，以及将本科生介绍给粒子物理研究的前沿。