Collaborative Research (RUI): Search for Exotic Transient Spin-dependent Signals from Ultralight Dark Matter Fields

合作研究（RUI）：从超轻暗物质场中寻找奇异的瞬态自旋相关信号

基本信息

批准号：
1707803
负责人：
Jason Stalnaker
金额：
$ 23.5万
依托单位：
Oberlin College
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2017
资助国家：
美国
起止时间：
2017-05-15 至 2021-04-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1707803&HistoricalAwards=false
关键词：
Collaborative Research RUI Search Exotic

项目摘要

A host of astrophysical and cosmological measurements have conclusively established that over 85% of all matter in the Universe is dark matter. Understanding the nature of dark matter is one of the greatest challenges of modern physics and is of paramount importance in understanding the origin and structure of the universe. A theoretically well-motivated possibility is that the dark matter consists of ultralight fields, corresponding to particles of very low mass. The mass-energy associated with dark matter is then primarily stored in oscillations of the dark matter field or in localized defects. If the dark matter takes this form, then instead of being bathed in a uniform dark matter flux, terrestrial detectors will witness transient events when the Earth passes through a dark matter clump or a kind of domain wall such as is found in a magnetized material such as nickel. This award provides support to operate, expand, and significantly upgrade a network of geographically separated, time-synchronized atomic magnetometers to search for correlated transient signals heralding new physics.Both institutions have a strong history of diversity, with CSU - East Bay being the most diverse university in the continental United States and Oberlin College being the first college to admit African American students and women in a co-educational setting on a regular basis. The proposed research programs are at the vanguard of attracting and retaining women and underrepresented minority physicists.The Global Network of Optical Magnetometers to search for Exotic physics (GNOME) is sensitive to nuclear and electron spin couplings to various exotic particles and fields. To date, no such search for transient spin-dependent interactions has ever been carried out, making the proposed research a completely novel experimental window on new physics. In addition to carrying out a dedicated long-term search using the existing GNOME during the first year of the grant, the GNOME will be upgraded in order to dramatically improve its sensitivity.

许多天体物理和宇宙学测量结果最终确定了宇宙中所有物质的85％以上是暗物质。了解暗物质的本质是现代物理学的最大挑战之一，对于理解宇宙的起源和结构至关重要。理论上动机的可能性是暗物质由超轻磁场组成，对应于非常低质量的颗粒。然后，与暗物质相关的质量能量主要存储在暗物质场或局部缺陷中。如果暗物质采用这种形式，那么当地球穿过暗物质团块或类似的域壁时，陆地探测器将目睹瞬时事件，而不是在均匀的材料（例如镍等材料（例如镍）中发现时，陆地探测器将目睹短暂的事件。该奖项为运营，扩展和显着升级的网络提供了支持，该网络网络网络，同步的原子磁力计，以寻找相关的瞬态信号预示着新的物理学。多样性的多样性历史悠久，CSU的历史悠久，CSU- CSU-东湾是美国大陆大学的一所大学，在美国大陆的大学中，A ADMINTIANTIAN A IMP ADMITAINTIAL A IMP ADMITATIONTA ADMITAINTIC ARVINAINTIC ADMIND ADMITAINTIAL A IMP ADM ADM IND ADM ADM ADM ADM ADM ADM ADM ADM ADMINT ADM ADMINT ADM ADMINT组成了，基础。拟议的研究计划是吸引和保留妇女和代表性不足的少数族裔物理学家的先锋。搜索外来物理学（GNOME）的光学磁力计全球网络对核和电子旋转偶联对各种奇特的颗粒和领域都敏感。迄今为止，从未进行过这种对瞬态自旋依赖性相互作用的搜索，这使得拟议的研究是对新物理学的完全新颖的实验窗口。除了在赠款的第一年内使用现有侏儒进行专门的长期搜索外，将升级侏儒以显着提高其敏感性。