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

概述、目的和目标：理论与实验联合进行。候选人将致力于开发高阶QCD计算的创新技术，并将其应用于获得关键LHC过程的高精度预测。特别强调的是与重口味相关的矢量玻色子生产。在实验方面，学生将通过控制室轮班和JetEtmiss小组的作者资格鉴定任务为ATLAS探测器的操作做出贡献，该小组旨在使用机器学习技术改进和开发喷气标记方法。该学生还将使用ATLAS探测器对LHC Run 3数据集进行分析。测量将与学生在其工作的理论部分中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是很重要的，而且不仅在它们本身作为微扰QCD测试的权利上很有趣，而且在质子部分子分布函数的背景下也很有趣，其中W+c对鲜为人知的奇异夸克高度敏感。在理论和实验方面，有许多可能的扩展和进一步的发展，这将随着项目的发展而定义。研究方法的新颖性：这项工作将需要为理论计算开发新的和创新的技术和工具，包括考虑与喷气风味定义相关的技术和工具。这些测量将是首次使用LHC Run 3数据的测量，并将首次应用与相关理论工作相关的最新、最先进的分析技术。研究结果将在高知名度的会议上传播，并将在经评审的期刊论文（和/或ATLAS CONF/PUB注释）中发表。

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).