Astroparticle Detection

天体粒子探测

• 批准号: 0801536
• 负责人: Daniel Akerib
• 金额: $ 90万
• 依托单位: Case Western Reserve 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: 2008-05-01 至 2012-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0801536&HistoricalAwards=false
• 关键词: Astroparticle; Detection

PROPOSAL NUMBER: 0801536INSTITUTION: Case Western ReserveNSF PROGRAM: PHY - PARTICLE ASTROPHYSICSPRINCIPAL INVESTIGATOR: Akerib, Daniel S.TITLE: Astroparticle Detection ABSTRACTObservations of galaxies, superclusters, distant supernovae and the cosmic microwave background radiation tell us that about 85% of the matter in the universe is not made of ordinary particles, but exists in some dark form. Deciphering the nature of this dark matter is of fundamental importance to cosmology, astrophysics, and high-energy particle physics. A leading hypothesis is that it is comprised of Weakly Interacting Massive Particles, or WIMPs, that were produced moments after the Big Bang. If WIMPs are the dark matter, then their presence in our Milky Way may be detectable via scattering from atomic nuclei in a terrestrial detector. This proposal requests continued base-program support to work on the Cryogenic Dark Matter Search (CDMS) experiment which, in conjunction with the initial funding of the SuperCDMS project grant, will allow for (a) the completion of the CDMS-II experiment, which is fully constructed and acquiring science data at the Soudan Mine, (b) the testing and underground operation in the CDMS-II infrastructure at Soudan of two new ?SuperTowers,? each comprised of six next-generation detectors, and (c) a modest effort of long-range R&D to develop and test new hardware and detectors for possible followup experiments. This program will have broader impact than the WIMP search results. The technical development will push the envelope of phonon-mediated detectors, which have increasing applications in astrophysics, from optical astronomy to x-rays and cosmic microwave backgrounds studies, as well as other branches of physics such as quantum computing. In addition, the SuperCDMS collaboration will continue its support of public outreach program at Soudan, which hosts thousands of visitors each year for tours of the mine and laboratory.

提案编号：0801536机构：凯斯西储NSF的研究：物理粒子天体物理学的RINCIPAL探测器：Akerib，丹尼尔S.标题：天体粒子探测摘要对星系，超星系团，遥远的超新星和宇宙微波背景辐射的观测告诉我们，宇宙中大约85%的物质不是由普通粒子组成的，而是以某种黑暗的形式存在的。破译这种暗物质的性质对宇宙学、天体物理学和高能粒子物理学具有根本的重要性。一个主要的假设是，它是由弱相互作用大质量粒子（WIMP）组成的，这些粒子是在大爆炸后产生的。如果WIMP是暗物质，那么它们在我们银河系中的存在可以通过地面探测器中原子核的散射来检测。该提案要求继续为低温暗物质搜索实验的工作提供基础方案支持，该实验与超级暗物质搜索项目赠款的初步供资相结合，将能够：（a）完成在苏丹矿完全建造并获取科学数据的CDMS-II实验，（B）在苏丹的CDMS-II基础设施中测试和地下运行两个新的？超级塔楼，？每个探测器由六个下一代探测器组成，以及（c）远程研发的适度努力，以开发和测试新的硬件和探测器，用于可能的后续实验。该计划将比WIMP搜索结果产生更广泛的影响。技术的发展将推动声子介导探测器的发展，这些探测器在天体物理学中的应用越来越多，从光学天文学到x射线和宇宙微波背景研究，以及量子计算等其他物理学分支。此外，SuperCDMS合作将继续支持苏丹的公共宣传计划，该计划每年接待数千名游客参观矿山和实验室的图尔斯。