DEAP-3600 Operation and Analysis

DEAP-3600操作与分析

基本信息

  • 批准号:
    SAPPJ-2017-00028
  • 负责人:
  • 金额:
    $ 32.45万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Subatomic Physics Envelope - Project
  • 财政年份:
    2018
  • 资助国家:
    加拿大
  • 起止时间:
    2018-01-01 至 2019-12-31
  • 项目状态:
    已结题

项目摘要

The DEAP collaboration has been vary active with detector construction completion, cooldown, filling with liquid argon, detector commissioning, data collection and analysis. Operation of the detector will continue through the period covered by this request, and will require significant collaboration effort, enabled by the requested funds. The origin of dark matter in our universe is currently one of the most important questions in particle astrophysics. It is well-established that most of the matter in our universe is dark. A favored hypothesis is that the dark matter consists of WIMPs, weakly interacting massive particles, which could be detected by observing their elastic scattering from nuclei. This proposal builds on research using liquid argon for a sensitive dark matter search. The current best limit on the spin-independent WIMP-nucleon cross-section is approximately 2.2x10^-46 cm^2 for a WIMP mass of 50 GeV, obtained by the LUX collaboration. Scaling the current-generation experiments to larger masses is critical since current theoretical models predict that improvements of sensitivity of several orders of magnitude may be needed before dark matter particles can be detected. Our research targets sensitivity to the WIMP-nucleon cross-section of 10^-46 cm^2 for a 100-GeV WIMP, and with good sensitivity to high-mass WIMPs. Noble liquids as low-energy particle astrophysics detectors have gained much interest since many of these can be cleaned to extremely low levels of radioactivity, and it is recognized that these can be used to build very large target mass detectors. Unique to the DEAP-3600 experiment is the novel technique of providing discrimination based on the time evolution of the scintillation pulse. This leads to a simple detector design that can be scaled to a very large target mass. The detector includes a large spherical acrylic vessel viewed by photomultiplier tubes (PMTs) to allow the recording of the evolution of a scintillation event in the argon. The PMT positions for each event will be used to estimate the initial event vertex, and serve as the primary rejection for external-source background events to allow a fiducial target mass of approximately 1000 kg of argon. The experiment resides in a large shielding tank approximately 8 meters in diameter and 8 meters high. Construction of the detector was completed in 2015, and the collaboration has been commissioning the detector systems and performing detector calibration, in preparation for the science run with liquid argon. This proposal will lead to further training of HQP in Canada. In addition to attracting students and international highly qualified researchers, it is anticipated that several post-doctoral fellows and RAs will be supported by the requested funds, in addition to technical personnel to enable operations at the experimental site.**
DEAP的合作在探测器建造完成、冷却、液氩填充、探测器调试、数据收集和分析方面一直很活跃。探测器的运行将持续到本申请所涉期间,需要在所申请资金范围内开展大量协作。宇宙中暗物质的起源是目前粒子天体物理学中最重要的问题之一。众所周知,我们宇宙中的大部分物质都是暗的。一个受欢迎的假设是,暗物质由弱相互作用的大质量粒子组成,可以通过观察它们从原子核的弹性散射来检测。这项提议建立在使用液态氩进行敏感暗物质搜索的研究基础上。对于50 GeV的WIMP质量,目前自旋无关的WIMP-核子横截面的最佳极限约为2.2 x10 ^-46 cm ^2,这是由LUX合作获得的。将当前产生的实验规模扩大到更大的质量是至关重要的,因为目前的理论模型预测,在探测到暗物质粒子之前,可能需要提高几个数量级的灵敏度。我们的研究目标是对100 GeV的WIMP的10^-46 cm ^2的WIMP-核子截面的灵敏度,以及对高质量WIMP的良好灵敏度。稀有液体作为低能粒子天体物理探测器已经引起了很大的兴趣,因为其中许多液体可以被清洗到极低的放射性水平,人们认识到,这些液体可以用来建造非常大的目标质量探测器。DEAP-3600实验的独特之处在于基于闪烁脉冲的时间演变提供鉴别的新技术。这导致了一个简单的检测器设计,可以缩放到一个非常大的目标质量。该探测器包括一个大的球形丙烯酸容器,通过光电倍增管(PMT)观察,以允许记录氩气中闪烁事件的演变。每个事件的PMT位置将用于估计初始事件顶点,并作为外部源背景事件的主要拒绝,以允许约1000 kg氩气的基准目标质量。该实验位于一个直径约8米,高8米的大型屏蔽罐中。探测器的建造于2015年完成,合作一直在调试探测器系统并进行探测器校准,为使用液态氩的科学运行做准备。这一建议将导致在加拿大进一步培训人力资源规划人员。除了吸引学生和高素质的国际研究人员外,预计申请的资金将支持几名博士后研究员和RA,以及技术人员,以便在实验场地开展业务。

项目成果

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Boulay, Mark其他文献

Boulay, Mark的其他文献

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{{ truncateString('Boulay, Mark', 18)}}的其他基金

ARGO - Development of next-generation argon dark matter search
ARGO - 下一代氩暗物质搜索的开发
  • 批准号:
    SAPPJ-2021-00018
  • 财政年份:
    2022
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
DEAP-3600 Data Collection And Analysis
DEAP-3600 数据采集与分析
  • 批准号:
    SAPPJ-2020-00021-1
  • 财政年份:
    2022
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
Particle Astrophysics and Subatomic Physics
粒子天体物理学和亚原子物理学
  • 批准号:
    CRC-2016-00176
  • 财政年份:
    2022
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Canada Research Chairs
DEAP-3600 Data Collection And Analysis
DEAP-3600 数据采集与分析
  • 批准号:
    SAPPJ-2020-00021-1
  • 财政年份:
    2021
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
Particle Astrophysics And Subatomic Physics
粒子天体物理学和亚原子物理学
  • 批准号:
    CRC-2016-00176
  • 财政年份:
    2021
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Canada Research Chairs
ARGO - Development of next-generation argon dark matter search
ARGO - 下一代氩暗物质搜索的开发
  • 批准号:
    SAPPJ-2021-00018
  • 财政年份:
    2021
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
DEAP-3600 Data Collection And Analysis
DEAP-3600 数据采集与分析
  • 批准号:
    SAPPJ-2020-00021-1
  • 财政年份:
    2020
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
DEAP-3600 Analysis and Operations
DEAP-3600 分析与操作
  • 批准号:
    SAPPJ-2019-00033-1
  • 财政年份:
    2019
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
DEAP-3600 Operation and Analysis
DEAP-3600操作与分析
  • 批准号:
    SAPPJ-2017-00028
  • 财政年份:
    2017
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
DEAP-3600 Operation and Analysis
DEAP-3600操作与分析
  • 批准号:
    SAPPJ-2016-00023
  • 财政年份:
    2016
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project

相似海外基金

DEAP-3600 Operation and Analysis
DEAP-3600操作与分析
  • 批准号:
    SAPPJ-2017-00028-3
  • 财政年份:
    2018
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
DEAP-3600 Operation and Analysis
DEAP-3600操作与分析
  • 批准号:
    SAPPJ-2017-00028-2
  • 财政年份:
    2018
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
DEAP-3600 Operation and Analysis
DEAP-3600操作与分析
  • 批准号:
    SAPPJ-2017-00028-5
  • 财政年份:
    2018
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
DEAP-3600 Operation and Analysis
DEAP-3600操作与分析
  • 批准号:
    SAPPJ-2017-00028-4
  • 财政年份:
    2018
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
DEAP-3600 Operation and Analysis
DEAP-3600操作与分析
  • 批准号:
    SAPPJ-2017-00028-4
  • 财政年份:
    2017
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
DEAP-3600 Operation and Analysis
DEAP-3600操作与分析
  • 批准号:
    SAPPJ-2017-00028-1
  • 财政年份:
    2017
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
DEAP-3600 Operation and Analysis
DEAP-3600操作与分析
  • 批准号:
    SAPPJ-2017-00028-2
  • 财政年份:
    2017
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
DEAP-3600 Operation and Analysis
DEAP-3600操作与分析
  • 批准号:
    SAPPJ-2017-00028
  • 财政年份:
    2017
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
DEAP-3600 Operation and Analysis
DEAP-3600操作与分析
  • 批准号:
    SAPPJ-2017-00028-3
  • 财政年份:
    2017
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
DEAP-3600 Operation and Analysis
DEAP-3600操作与分析
  • 批准号:
    SAPPJ-2016-00023-1
  • 财政年份:
    2016
  • 资助金额:
    $ 32.45万
  • 项目类别:
    Subatomic Physics Envelope - Project
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