Probing the coupling between the top-quark and gauge bosons with the ATLAS experiment at the LHC

通过 LHC 的 ATLAS 实验探索顶夸克和规范玻色子之间的耦合

• 批准号: 2446766
• 金额: --
• 依托单位: University of Glasgow
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2446766
• 关键词: Probing; coupling; between; top; quark

The top-quark is the heaviest fundamental particle observed to date. It plays a crucial role in many beyond the Standard Model theories and hence precision measurements of the top-quark are essential to probe the limits of the Standard Model. The large dataset provided by the Large Hadron Collider (LHC) to the ATLAS experiment allows to measure rare processes such as top-quark pair production in association with either the Z boson (ttZ) or the Higgs boson (ttH). Measuring these processes will test whether the couplings between the top-quark and the gauge bosons agrees with the Standard Model of particle physics. The aim of this project is use the data collected by the ATLAS experiment to make detailed measurements of the ttZ and ttH processes. The student will apply novel unfolding techniques to the large ATLAS datasets to measure the differential cross-section of the processes, which will then be able to be used to probe beyond the Standard Model theories. The project is aligned with STFCs goal for "World Class Research" and fits within the STFC theme for data-intensive science. The research will be done in collaboration with other members of the ATLAS collaboration.

最高的是迄今为止观察到的最重的基本粒子。它在许多超出标准模型理论之外的许多人中起着至关重要的作用，因此，Top-Quark的精确测量对于探测标准模型的限制至关重要。大型强子对撞机（LHC）向Atlas实验提供的大型数据集允许测量稀有过程，例如与Z Boson（TTZ）或Higgs Boson（TTH）相关的Quark对生产。测量这些过程将测试顶Quark和仪表玻色子之间的耦合是否与粒子物理的标准模型一致。该项目的目的是使用Atlas实验收集的数据来详细测量TTZ和TTH过程。学生将将新颖的展开技术应用于大型ATLAS数据集，以测量过程的差分横截面，然后将其用于探测超出标准模型理论的探测。该项目与STFCS的“世界一流研究”目标保持一致，并适合数据密集型科学的STFC主题。这项研究将与Atlas合作的其他成员合作进行。