Simulation studies of the LUX ZEPLIN (LZ) detector calibrations and data analysis

LUX ZEPLIN (LZ) 探测器校准和数据分析的模拟研究

基本信息

  • 批准号:
    1935504
  • 负责人:
  • 金额:
    --
  • 依托单位:
  • 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

项目摘要

LUX-ZEPLIN is a next generation Dark Matter experiment to be deployed at the Sanford Underground Research facility in Lead, South Dakota (USA). It will use 10 tonnes of liquid xenon and 500 photomultiplier tubes (PMT) to detect extremely rare events of dark matter interactions with regular matter. For the unambiguous detection of the elusive dark matter particle called Weakly Interacting Massive Particle (WIMP) a rigorous detector calibration programme is required. The experiment will use a suite of internally dispersed (83mKr, 131Xe, 220Rn and CH4 labelled tritium) and externally deployed sealed neutron (AmLi, 205, 206BiBe, 252Cf, 88YeBe) and gamma (57Co, 22Na, 133Ba, 228Th) radiation sources to provide high statistics calibration of the response to background events and WIMP signal. Rare-event experiments require exquisitely a well-calibrated detector as well as extremely accurate simulations tuned on existing calibration data, to model the detector response. In addition to the calibrations, all data analysis steps have to be extremely robust. A very important step is to extract and identify single photons from the pulse trains that the digitizers record from the electronics chain comprising PMT, cabling, amplifier board and further cabling. Algorithms to do this exist and have been tested at a level suitable for existing experiments, however, further improvements can be made by incorporating new techniques and the expanded understanding of detail of the detector response. The goal of this project is to perform detailed simulations to provide an optimal understanding of the detector response to calibration sources. The project objective is to simulate events from neutron and gamma sources used in the LZ experiment and reconstruct events' position and energy spectra, which is a key part of the detector calibration. Improving on photon detection, reconstruction and triggering effort will involve generating simulations of particular events in a xenon time projection chamber (re-using calibration events, for example), events from data recorded in previous experiments and using all possible information that is available in order to provide and validate a suitably enhanced algorithms. The project is computer based, using GEANT-based simulation, the ROOT data analysis package and the LZAp analysis framework. It is carried out within the LZ Collaboration of which Oxford is a member. The particular project will also have an element of collaboration with our LZ colleagues at RAL who have responsibility for contributing to the LZ calibrations effort.
LUX-ZEPLIN是下一代暗物质实验,将部署在美国南达科他州的桑福德地下研究设施。它将使用10吨液体氙和500个光电倍增管(PMT)来探测暗物质与常规物质相互作用的极其罕见的事件。对于难以捉摸的暗物质粒子称为弱相互作用大质量粒子(WIMP)的明确检测,需要严格的检测器校准计划。该实验将使用一套内部分散的(83 mKr,131 He,220 Rn和CH 4标记的氚)和外部部署的密封中子(AmLi,205,206 BiBe,252 Cf,88 YeBe)和伽马(57 Co,22 Na,133 Ba,228 Th)辐射源,以提供对背景事件和WIMP信号响应的高统计校准。稀有事件实验需要精确校准的探测器以及根据现有校准数据调整的极其精确的模拟,以模拟探测器的响应。除了校准,所有数据分析步骤都必须非常稳健。一个非常重要的步骤是从脉冲序列中提取和识别单光子,数字化仪从包括PMT、电缆、放大器板和进一步电缆的电子链中记录单光子。这样做的算法存在,并已在适合现有实验的水平上进行了测试,但是,可以通过结合新技术和对探测器响应细节的扩展理解来进行进一步改进。该项目的目标是进行详细的模拟,以提供对探测器对校准源的响应的最佳理解。该项目的目标是模拟LZ实验中使用的中子和伽马源的事件,并重建事件的位置和能谱,这是探测器校准的一个关键部分。改进光子探测、重建和触发工作将涉及生成氙时间投影室中的特定事件的模拟(例如,重新使用校准事件)、来自先前实验中记录的数据的事件以及使用可用的所有可能信息,以便提供和验证适当增强的算法。该项目以计算机为基础,使用基于GEANT的模拟、ROOT数据分析包和LZAp分析框架。它是在牛津大学加入的LZ合作组织内进行的。该特定项目还将与负责为LZ校准工作做出贡献的RAL LZ同事进行合作。

项目成果

期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Measurement of the gamma ray background in the Davis cavern at the Sanford Underground Research Facility
桑福德地下研究设施戴维斯洞穴中伽马射线背景的测量
  • DOI:
    10.1016/j.astropartphys.2019.102391
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    3.5
  • 作者:
    Akerib D
  • 通讯作者:
    Akerib D
The LUX-ZEPLIN (LZ) experiment
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其他文献

Internet-administered, low-intensity cognitive behavioral therapy for parents of children treated for cancer: A feasibility trial (ENGAGE).
针对癌症儿童父母的互联网管理、低强度认知行为疗法:可行性试验 (ENGAGE)。
  • DOI:
    10.1002/cam4.5377
  • 发表时间:
    2023-03
  • 期刊:
  • 影响因子:
    4
  • 作者:
  • 通讯作者:
Differences in child and adolescent exposure to unhealthy food and beverage advertising on television in a self-regulatory environment.
在自我监管的环境中,儿童和青少年在电视上接触不健康食品和饮料广告的情况存在差异。
  • DOI:
    10.1186/s12889-023-15027-w
  • 发表时间:
    2023-03-23
  • 期刊:
  • 影响因子:
    4.5
  • 作者:
  • 通讯作者:
The association between rheumatoid arthritis and reduced estimated cardiorespiratory fitness is mediated by physical symptoms and negative emotions: a cross-sectional study.
类风湿性关节炎与估计心肺健康降低之间的关联是由身体症状和负面情绪介导的:一项横断面研究。
  • DOI:
    10.1007/s10067-023-06584-x
  • 发表时间:
    2023-07
  • 期刊:
  • 影响因子:
    3.4
  • 作者:
  • 通讯作者:
ElasticBLAST: accelerating sequence search via cloud computing.
ElasticBLAST:通过云计算加速序列搜索。
  • DOI:
    10.1186/s12859-023-05245-9
  • 发表时间:
    2023-03-26
  • 期刊:
  • 影响因子:
    3
  • 作者:
  • 通讯作者:
Amplified EQCM-D detection of extracellular vesicles using 2D gold nanostructured arrays fabricated by block copolymer self-assembly.
使用通过嵌段共聚物自组装制造的 2D 金纳米结构阵列放大 EQCM-D 检测细胞外囊泡。
  • DOI:
    10.1039/d2nh00424k
  • 发表时间:
    2023-03-27
  • 期刊:
  • 影响因子:
    9.7
  • 作者:
  • 通讯作者:

的其他文献

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{{ truncateString('', 18)}}的其他基金

An implantable biosensor microsystem for real-time measurement of circulating biomarkers
用于实时测量循环生物标志物的植入式生物传感器微系统
  • 批准号:
    2901954
  • 财政年份:
    2028
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    --
  • 项目类别:
    Studentship
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利用人类肠道微生物群的多糖分解能力来开发环境可持续的洗碗解决方案
  • 批准号:
    2896097
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    2027
  • 资助金额:
    --
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  • 资助金额:
    --
  • 项目类别:
    Studentship
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  • 财政年份:
    2027
  • 资助金额:
    --
  • 项目类别:
    Studentship
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质子、α 和 γ 辐照辅助应力腐蚀开裂:了解燃料-不锈钢界面
  • 批准号:
    2908693
  • 财政年份:
    2027
  • 资助金额:
    --
  • 项目类别:
    Studentship
Field Assisted Sintering of Nuclear Fuel Simulants
核燃料模拟物的现场辅助烧结
  • 批准号:
    2908917
  • 财政年份:
    2027
  • 资助金额:
    --
  • 项目类别:
    Studentship
Assessment of new fatigue capable titanium alloys for aerospace applications
评估用于航空航天应用的新型抗疲劳钛合金
  • 批准号:
    2879438
  • 财政年份:
    2027
  • 资助金额:
    --
  • 项目类别:
    Studentship
Developing a 3D printed skin model using a Dextran - Collagen hydrogel to analyse the cellular and epigenetic effects of interleukin-17 inhibitors in
使用右旋糖酐-胶原蛋白水凝胶开发 3D 打印皮肤模型,以分析白细胞介素 17 抑制剂的细胞和表观遗传效应
  • 批准号:
    2890513
  • 财政年份:
    2027
  • 资助金额:
    --
  • 项目类别:
    Studentship
CDT year 1 so TBC in Oct 2024
CDT 第 1 年,预计 2024 年 10 月
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  • 资助金额:
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    Studentship
Understanding the interplay between the gut microbiome, behavior and urbanisation in wild birds
了解野生鸟类肠道微生物组、行为和城市化之间的相互作用
  • 批准号:
    2876993
  • 财政年份:
    2027
  • 资助金额:
    --
  • 项目类别:
    Studentship

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