Heavy flavour physics at LHCb and development of vertexing with fast timing

LHCb 的重口味物理学和快速定时顶点的开发

• 批准号: 2727003
• 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-2727003
• 关键词: Heavy; flavour; physics; LHCb; development

The research studentship is set in the context of the LHCb experiment at CERN, which is a detector dedicated to the measurements of the forward region of proton-proton interactions. Most notably, LHCb is exceptionally apt for the study of heavy-flavour: those containing beauty and charm quarks. LHCb has been upgraded for Run 3 of LHC running, and it will cause a trebling of the dataset size in the next three years. The data analysis part of the studentship will use the new data collected during those years. Specifically, the research topic will be an examination of the the coupling between the heaviest lepton and heaviest quarks. The huge datasets of LHCb allow decays involving these couplings to be studied with unprecedented detail. Techniques developed during Run 1&2 will be employed and extended as the investigation dictates.The studentship will contain a significant hardware aspect. The Upgrade II of the LHCb experiment (2033+) is critically dependent on the advent of 4D vertexing in the future vertex detector. An intensive testbeam campaign is underway to demonstrate technologies build for fast-timing tracking applications and should culminate in measuring track time-stamping with a precision commensurate with 4D vertexing. The student will join this testbeam effort and characterise the fast sensors being developed by UK silicon industrial partners. As a contribution, the student will pick up some maintenance responsibilities for the testbeam software.

该研究奖学金是在欧洲核子研究中心的LHCb实验的背景下设置的，该实验是一种专用于测量质子-质子相互作用的前向区域的探测器。最值得注意的是，LHCb特别适合研究重味夸克：那些包含美夸克和魅夸克的夸克。LHCb已经升级为LHC运行的第三次运行，它将在未来三年内使数据集大小增加两倍。学生奖学金的数据分析部分将使用这些年来收集的新数据。具体而言，研究课题将是最重轻子和最重夸克之间的耦合检查。LHCb的庞大数据集允许以前所未有的细节研究涉及这些耦合的衰变。在第一轮和第二轮中开发的技术将根据调查的要求被使用和扩展。学生奖学金将包括一个重要的硬件方面。LHCb实验（2033+）的升级II严重依赖于未来顶点检测器中4D顶点的出现。一个密集的测试光束活动正在进行中，以展示为快速定时跟踪应用而构建的技术，并应最终以与4D顶点相当的精度测量轨道时间戳。该学生将加入这一试验梁的努力，并验证英国硅工业合作伙伴正在开发的快速传感器。作为贡献，学生将承担测试梁软件的一些维护责任。