Precision Flavour and Standard Model Physics Measurements at the Large Hadron Collider

大型强子对撞机的精确风味和标准模型物理测量

• 批准号: 1945250
• 金额: --
• 依托单位: University of Sussex
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1945250
• 关键词: Precision; Flavour; Standard; Model; Physics

Precision measurements in known sectors of the Standard Model can pinpoint discrepancies with respect to its predictions, therefore producing indications of new physics phenomena. The Flavour sector is one of the richest well-modelled precision domains where these discrepancies are still to be fully explored. Thanks to the high luminosity provided by the LHC, the ATLAS experiment can achieve unprecedented precision in some of these measurements, which range from precision determinations of particle properties (product ion mechanisms, lifetimes etc.) to the search and identification of properties of new particles. The Sussex ATLAS group is currently involved in the search for the very rare disintegration of B mesons into two muons, as well as the measurement of the lifetime of Bs CP eigenstates. The student will take a leading role in one of the Sussex ATLAS group analysis activities, building on the experience of the existing analyses in the flavour sector and additional indirect searches for new physics. The student will also participate to hardware and software based projects related to ATLAS event selection system (Trigger) operation, development as well as R&D activities for the ATLAS upgrade. Due to the centrality of CERN-based activities in this project, frequent trips to CERN and collaborating institutes will be required, including a LTA period at CERN.

对标准模型已知扇区的精确测量可以指出与其预测的差异，从而产生新物理现象的迹象。风味部门是最丰富的精确建模领域之一，这些差异仍有待充分探索。由于LHC提供的高亮度，ATLAS实验可以在其中一些测量中实现前所未有的精度，这些测量范围从粒子性质的精确测定（产物离子机制，寿命等）。对新粒子性质的探索和识别。苏塞克斯ATLAS小组目前正在研究B介子分裂成两个μ子的罕见过程，以及Bs CP本征态寿命的测量。学生将在苏塞克斯ATLAS组分析活动之一中发挥主导作用，建立在风味部门现有分析的经验和对新物理学的额外间接搜索的基础上。学生还将参与与ATLAS事件选择系统（触发器）操作，开发以及ATLAS升级的研发活动相关的硬件和软件项目。由于欧洲核研究组织的活动在本项目中处于中心地位，需要经常前往欧洲核研究组织和合作机构，包括在欧洲核研究组织的长期协议期。