WIMP Dark Matter Searches with the LUX-ZEPLIN Experiment

使用 LUX-ZEPLIN 实验搜索 WIMP 暗物质

• 批准号: 2613002
• 金额: --
• 依托单位: University of Sheffield
• 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-2613002
• 关键词: WIMP; Dark; Matter; Searches; LUX

This project will focus on using data from the LUX-ZEPLIN experiment at SURF in South Dakota, USA, to search for weakly interacting massive particles (WIMPs) constituting the dark matter in our galaxy. The project will focus on three aspects: (1) the use of multiple-scatter (MS) events to assess the magnitude of irreducible neutron-induced nuclear recoil backgrounds to a WIMP signal, (2) the use of MS events obtained from d-d neutron source calibrations to measure the charge yield in liquid xenon from nuclear recoil events, (3) the use of SS and MS control regions to constrain electron and nuclear recoil backgrounds in the final PLR statistical analysis, and the incorporation of related background model systematics via the profile likelihood construction.

该项目将重点利用美国南达科他州SURF的LUX-ZEPLIN实验数据，寻找构成银河系暗物质的弱相互作用大质量粒子(WIMP)。该项目将侧重于三个方面：(1)利用多重散射(MS)事件来评估WIMP信号的不可约中子引起的核反冲背景的大小，(2)使用d-d中子源校准获得的MS事件来测量核反冲事件产生的液体氙气的电荷产额，(3)在最后的PLR统计分析中使用SS和MS控制区来约束电子和核反冲背景，并通过轮廓似然构造纳入相关的背景模型系统。