QCD calculations and measurements of vector boson + heavy flavour processes at the LHC

大型强子对撞机矢量玻色子重味过程的 QCD 计算和测量

• 批准号: 2726983
• 金额: --
• 依托单位: University of Oxford
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2726983
• 关键词: QCD; calculations; measurements; vector; boson

Overview, aims and objectives:The studentship is being conducted jointly in Theory and Experiment. The candidate will work on developing innovative techniques for higher-order QCD calculations, and apply them to obtain high-precision predictions for key LHC processes. A particular emphasis will be put on vector boson production in association with heavy flavour. On the experimental side, the student will contribute to the operation of the ATLAS detector via control room shifts, and an authorship qualification task within the JetEtmiss group, which aims to improve and develop jet tagging methods using machine learning techniques. The student will also perform analysis on the LHC Run 3 dataset using the ATLAS detector. The measurements will be related to the calculations and tools that the student has developed during the theoretical parts of his work. Such calculations and measurements are important to improve our understanding and modelling of these processes, and are interesting not only in their own right as a test of perturbative QCD, but also e.g. in the context of proton parton distribution functions, where W+c is highly sensitive to the poorly known strange quark. There are a number of possible extensions and further developments, on both the theoretical and experimental side, which will be defined as the project evolves.Novelty of research methodology:The work will require development of new and innovative techniques and tools for the theory calculations, including consideration of those related to the definition of jet flavour. The measurements will be the first of their kind using the LHC Run 3 data, and will apply for the first time new, state-of-the-art analysis techniques related to the associated theoretical work. The results will be disseminated in high-profile conferences and the results will be published in refereed journal papers (and/or ATLAS CONF/PUB notes).

概述，目标和目标：在理论和实验中共同进行学生训练。候选人将致力于开发用于高阶QCD计算的创新技术，并将其应用于关键LHC过程的高精度预测。特别重点将与较高风味相关的矢量玻色子产量。在实验方面，学生将通过控制室的变化为Atlas探测器的运行做出贡献，并在JetEtmiss组中执行了作者资格任务，该任务旨在使用机器学习技术来改进和开发喷气标记方法。学生还将使用ATLAS检测器对LHC运行3个数据集进行分析。测量结果将与学生在工作的理论部分开发的计算和工具有关。这样的计算和测量对于提高我们对这些过程的理解和建模非常重要，并且不仅可以作为扰动QCD的测试，而且还有趣，例如在质子Parton分布函数的背景下，其中W+C对鲜为人知的奇怪夸克高度敏感。在理论和实验方面都有许多可能的扩展和进一步的发展，这将被定义为项目的发展。研究方法的份额：工作将需要开发新的，创新的技术和理论计算的工具，包括考虑与喷气味的定义相关的研究。测量结果将是使用LHC运行3个数据的第一个测量结果，并将首次适用于与相关理论工作有关的新的，最新的分析技术。结果将在备受瞩目的会议中传播，结果将在被指控的期刊论文（和/或Atlas Conf/Pub Notes）中发表。