Advancing the Search for Dark Matter: from CDMS II to SuperCDMS
Advancing the Search for Dark Matter: from CDMS II to SuperCDMS
复制标题
推进暗物质的探索：从 CDMS II 到 SuperCDMS
DOI：
10.2172/1248359
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
S. Hertel
中科院分区：
文献类型：
--
作者：
S. Hertel
宇宙的绝大部分（83%）是由我们几乎一无所知的粒子组成的。通过假设的弱力介导的反冲与地球上的核目标直接检测这些暗物质粒子，可以揭示这些粒子是什么，它们如何与标准模型相关，以及标准模型如何符合更基本的理解。本文介绍了两个这样的实验工作：CDMS 11（2007-2009）和SuperCDMS Soudan（正在进行）。这两个实验的一般能力和灵敏度的布局，特别强调的检测器技术，以及这种技术是如何从第一个到第二个实验的演变。我花了大量精力研究的一些主题在这里只做了概述（特别是CDMS II分析的细节，这在以前已经做过很多次了），而其他地方没有描述的一些主题则得到了更深入的处理。特别是，这篇论文希望是一个很好的参考，为那些有兴趣的年度调制限制放置在低能量部分的CDMS II曝光，设计的探测器SuperCDMS苏丹，并概述了这些探测器产生的非常翔实的数据。这是一个激动人心的时刻。我荣誉在过去几年里从事的技术提供了关于每个事件的丰富信息，比任何其他直接检测实验都要多，我们仍在学习如何最佳地利用所有这些信息。从地面和现在的地下进行的初步测试表明，这项技术具有计划中的200公斤实验甚至吨级实验所需的背景抑制能力，使我们处于探测参数空间数量级的门槛上。论文导师：Enectali Figueroa-Feliciano职称：物理学副教授
An overwhelming proportion of the universe (83% by mass) is composed of particles we know next to nothing about. Detecting these dark matter particles directly, through hypothesized weak-force-mediated recoils with nuclear targets here on earth, could shed light on what these particles are, how they relate to the standard model, and how the standard model fits within a more fundamental understanding. This thesis describes two such experimental efforts: CDMS 11 (2007-2009) and SuperCDMS Soudan (ongoing). The general abilities and sensitivities of both experiments are laid out, placing a special emphasis on the detector technology, and how this technology has evolved from the first to the second experiment. Some topics on which I spent significant efforts are described here only in overview (in particular the details of the CDMS II analysis, which has been laid out many times before), and some topics which are not described elsewhere are given a somewhat deeper treatment. In particular, this thesis is hopefully a good reference for those interested in the annual modulation limits placed on the low-energy portion of the CDMS II exposure, the design of the detectors for SuperCDMS Soudan, and an overview of the extremely informative data these detectors produce. It is an exciting time. The technology I've had the honor to work on the past few years provides a wealth of information about each event, more so than any other direct detection experiment, and we are still learning how to optimally use all this information. Initial tests from the surface and now underground suggest this technology has the background rejection abilities necessary for a planned 200kg experiment or even ton-scale experiment, putting us on the threshold of probing parameter space orders of magnitude from where the field currently stands. Thesis Supervisor: Enectali Figueroa-Feliciano Title: Associate Professor of Physics
影响因子：
8.6
作者：
Angle, J.;Aprile, E.;Yamashita, M.
通讯作者：
Yamashita, M.