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兼容并包和不同的二恶英产量的衡量，重点是tau-tau-b-b的最终状态。这种最后的状态是由新的物理模型推动的，这些模型可以解释LHCb实验中的一系列异常测量。这些测量将使用与模型无关的EFT系数，并使用最好地描述LHCb测量的特定轻夸克模型来解释。西蒙还将为ATLAS ITK像素系统做出贡献。该系统的构建块是包括通过凸点连接到读出芯片的传感器的模块。一种名为FLEX的柔性印刷电路板被粘在传感器的顶部，将模块连接到探测器外的电子设备上。像素端盖半环上的模块加载将使用机器人龙门和定制工具将模块放置在其标称位置的100微米内。Simon将为模块加载开发做出贡献，并执行粘合测试以优化粘合覆盖率。他还将对将在其中测试半环的冷箱进行组装和表征。