Test of lepton flavour universality at the NA62 experiment at CERN

轻子味普适性(LFU)是标准模型(SM)的一个支柱，它意味着来自不同轻子家族的粒子与电子和Muon的相互作用强度相等。粒子物理学最近的几个实验结果似乎表明了可能的LFU破坏，这是许多超出标准模型(BSM)情景的人预测的。介子是含有“奇怪的”夸克的最轻粒子，它提供了一种通过精确测量来寻找BSM物理的杰出方法。对奇异夸克和轻夸克衰变的实验研究是一个非常活跃的研究领域，预计在未来十年将取得重大进展。欧洲核子研究中心的NA62实验是一项多用途实验，研究罕见的Kaon衰变，是欧洲Kaon物理计划的旗舰，也是该领域的全球领先者。NA62自2016年开始运行，至少到2025年将继续收集数据。由于CERN加速器复合体提供了独特的高强度克子束和一系列最先进的探测器，在NA62实验中可以执行各种严格的SM测试。特别是，对NA62内轻子介子衰变的分析可能导致世界上最精确的LFU测试。Jamimah将加入NA62合作，并将利用NA62数据为LFU的研究做出贡献。将执行LFU分析的扩展，以约束几种BSM情景。加入一个中等规模的国际合作，Jamimah将有机会在粒子物理的热门话题上发挥领导作用，同时开发硬件、软件和数据分析方面的关键专业知识。Jamimah还将在CERN现场工作几个月，担任探测器专家并进行数据采集轮班。

Lepton Flavour Universality (LFU) is a pillar of the Standard Model (SM) that implies equal interaction strength for particles from different lepton families, as the electron and the muon. Several recent experimental results in particle physics seem to suggest possible LFU violation, which is predicted by many Beyond the Standard Model (BSM) scenarios. Kaons, the lightest particles containing the "strange" quark, provide an outstanding way of searching for BSM physics via precise measurements. Experimental studies of decays of strange and light quarks is a very active field of research, and significant progress is expected over the next decade. The NA62 experiment at CERN, a multi-purpose experiment investigating rare kaon decays, is the flagship of the European kaon physics programme and a leader in this field worldwide. NA62 has been operational since 2016 and will continue to collect data at least until 2025. Due to a uniquely intense kaon beam provided by the CERN accelerator complex and a range of state-of-the-art detectors, a variety of stringent SM tests can be performed within the NA62 experiment. In particular, the analysis of leptonic kaon decays within NA62 could lead to the most-precise LFU test in the world. Jamimah will join the NA62 collaboration and will contribute to the LFU research with the NA62 data. An extension of the LFU analysis to constrain several BSM scenarios will be performed. Joining a medium-size international collaboration, Jamimah will have the opportunity to play a leading role on a hot topic in particle physics, while developing key expertise on hardware, software, and data analysis. Jamimah will also spend some months on-site at CERN, acting as a detector expert and doing data-taking shifts.