Probing sterile neutrinos with exotic interactions

通过奇异的相互作用探测惰性中微子

• 批准号: 2766019
• 金额: --
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2766019
• 关键词: Probing; sterile; neutrinos; exotic; interactions

We will explore the constraints on sterile neutrinos under the presence of exotic interactions, i.e. beyond the mass mixing with the SM neutrinos. This will take the form of an EFT analysis of the SM including sterile neutrinos with masses up to the electroweak scale. The goal is a comprehensive picture of existing constraints and the future potential of measurements such as of the neutrino mass (neutrinoless double beta decay, Tritium decay) and the cosmic neutrino background. The project will be conducted alongside a PhD project (2019-23), supervised by Deppisch, on data-driven methods to improve neutrinoless double beta decay nuclear matrix elements, funded by the STFC CDT in Data Intensive Science at UCL. After initial training, the student will: apply statistical techniques of parameter inference and perform an updated global fit of current and prospective neutrino mass measurements (Y1); develop an EFT framework with sterile neutrinos with effective operators and connect these to observables (Y2); analyse in detail the constraints on sterile neutrinos as well as the potential of the most promising future measurements with a focus on modifications due to exotic interactions (Y3).

我们将在外来相互作用的存在下探索对无菌中微子的限制，即超出质量与SM中微子的混合。这将采取对SM的EFT分析的形式，其中包括无菌中微子，质量为Electroweak量表。目的是全面了解现有限制和测量的未来潜力，例如中微子质量（中微子双β衰减，tri衰变）和宇宙中微子背景。该项目将与Deppisch监督的博士项目（2019-23）一起进行，该项目由数据驱动的方法进行，以改善由STFC CDT在UCL的数据密集型科学领域资助的中微子双β衰减核基质元素。经过初步培训，学生将：应用参数推断的统计技术，并执行当前和前瞻性中微子质量测量的全球拟合度（Y1）；用无菌中微子与有效的操作员一起开发一个EFT框架，并将其连接到可观察物（Y2）；详细分析对无菌中微子的限制以及最有希望的未来测量的潜力，重点是由于外来相互作用引起的修改（Y3）。