Collaborative Proposal: The XENON Dark Matter Project: Construction and Underground Operation of a 100 kg Detector

合作提案：XENON 暗物质项目：100 公斤探测器的建造和地下操作

• 批准号: 0705326
• 负责人: Edison Liang
• 金额: --
• 依托单位: William Marsh Rice University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-04-01 至 2011-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0705326&HistoricalAwards=false
• 关键词: Collaborative; Proposal; XENON; Dark; Matter

PROPOSAL NUMBER: 0705337INSTITUTION: Columbia University PRINCIPAL INVESTIGATOR: Aprile, ElenaPROPOSAL NUMBER: 0705326INSTITUTION: William Marsh Rice University PRINCIPAL INVESTIGATOR: Oberlack, UweNSF PROGRAM: PHY ? UNDERGROUND PHYSICSTITLE: Collaborative Proposal: The XENON Dark Matter Project: Construction and Underground Operation of a 100 kg Detector ABSTRACTThe discovery of dark matter is of fundamental importance to cosmology, astrophysics, and particle physics. Despite the extreme challenges, the search for Weakly Interacting Massive Particles (WIMPs) believed to constitute the dark matter, continues with accelerator, space and underground based experiments. Ultimately, only astrophysical observations can determine whether WIMPs exist in nature, but the importance of direct detection of WIMP-nucleus scattering in laboratory experiments is well recognized. The US is in a world-leading position in direct detection; however, better-sensitivity experiments with sizeable increase in target mass and sophisticated background rejection schemes are key to future progress and discovery. This award provides support to the Columbia and Rice groups for their continuation of the XENON Dark Matter Program, with the construction of a 100 kg fiducial mass detector (XENON100). The sensitivity goal is 2x10^45 cm^2. This is achieved through background discrimination provided by the simultaneous detection of ionization and scintillation signals in pure liquid xenon. XENON100 is built on the design and technology established with the XENON10 prototype, with a factor of ~10 increase in total Xe mass. XENON100 is an experiment that can be built with minimum risk, giving first physics results by 2009, when the LHC will be searching for Supersymmetric dark matter. Among the Broader Impacts of this work, the XENON science has all the ingredients to captivate the interest and imagination of students and the general public alike. XENON technical-related work can impact society in a number of ways. The liquid xenon imaging detector technology is a prime candidate for applications in several fields outside particle astrophysics, including national security and medical imaging research.

提案编号：0705337 机构：哥伦比亚大学 首席研究员：Aprile, Elena 提案编号：0705326 机构：威廉·马什·莱斯大学 首席研究员：Oberlack，UweNSF 项目：PHY ?地下物理学标题：合作提案：氙暗物质项目：100 公斤探测器的建造和地下操作 摘要暗物质的发现对于宇宙学、天体物理学和粒子物理学具有根本重要性。尽管面临极端的挑战，但对被认为构成暗物质的弱相互作用大质量粒子（WIMP）的搜寻仍在继续，通过加速器、太空和地下实验。最终，只有天体物理观测才能确定自然界中是否存在 WIMP，但在实验室实验中直接检测 WIMP 核散射的重要性已得到广泛认可。美国在直接检测方面处于世界领先地位；然而，目标质量大幅增加和复杂的背景抑制方案的更高灵敏度的实验是未来进展和发现的关键。该奖项为哥伦比亚大学和莱斯大学团队继续实施 XENON 暗物质计划提供支持，建造 100 公斤基准质量探测器 (XENON100)。灵敏度目标是 2x10^45 cm^2。这是通过同时检测纯液氙中的电离和闪烁信号提供的背景辨别来实现的。 XENON100 基于 XENON10 原型建立的设计和技术而构建，Xe 总质量增加了约 10 倍。 XENON100 是一项可以以最小风险进行的实验，将在 2009 年大型强子对撞机 (LHC) 寻找超对称暗物质时给出第一个物理结果。在这项工作的更广泛影响中，氙科学拥有激发学生和公众兴趣和想象力的所有要素。 XENON 技术相关工作可以通过多种方式影响社会。液氙成像探测器技术是粒子天体物理学以外多个领域应用的主要候选者，包括国家安全和医学成像研究。