Preparations for ATLAS ITk Pixel Endcap Module loading and high-mass Frell-Yan leptoquark searches in ATLAS data

ATLAS ITk Pixel Endcap 模块加载和 ATLAS 数据中的高质量 Frell-Yan 轻夸克搜索的准备工作

• 批准号: 2583696
• 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: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2583696
• 关键词: Preparations; ATLAS; ITk; Pixel; Endcap

The data analysis project consists of a measurement of inclusive and differential ditau production, with an emphasis on the tau-tau-b-b final state. This final state is motivated by new-physics models that can explain a series of anomalous measurements at the LHCb experiment. The measurements will be interpreted using model-independent EFT coefficients, and using specific leptoquark models that best describe the LHCb measurements. Simon will also contribute to the ATLAS ITk Pixel system. The system's building blocks are the modules that include a sensor connected to a readout chip via bump bonds. A flexible PCB, called flex, is glued on top of the sensors to connect the modules to the off-detector electronics. Module loading on the pixel end-cap half-rings will be performed using a robotic gantry and custom tooling to place the modules within 100 um of their nominal positions. Simon will contribute to the module loading development and perform glueing tests to optimise the glue coverage. He will also carry out the assembly and characterisation of the cold box where the half-rings will be tested.

数据分析项目包括对包容性和差异性ditau生产的测量，重点是tau-tau-b-b最终状态。这种最终状态是由新物理模型激发的，这些模型可以解释LHCb实验中的一系列异常测量。测量将使用模型独立的EFT系数，并使用特定的leptoquark模型，最好地描述LHCb测量解释。Simon还将为ATLAS ITk Pixel系统做出贡献。该系统的构建块是包括通过凸块连接到读出芯片的传感器的模块。一个柔性PCB，称为flex，被粘在传感器的顶部，将模块连接到检测器外的电子设备。将使用机器人机架和定制工具将模块装载到像素端盖半环上，以将模块放置在其标称位置的100 um范围内。西蒙将有助于模块加载的发展和执行胶合测试，以优化胶水覆盖。他还将进行半环测试的冷箱的组装和表征。