Testing fundamental symmetries with the ALPHA antihydrogen experiment - bridging grant for new member

氢原子的实验和理论研究在现代物理学的发展中起着关键作用。直到今天，氢原子的光谱测量相对简单和精确，使其成为确定基本常数的重要工具。这使得氢的反物质对应物反氢的研究成为一个自然吸引人的系统，以测试物质和反物质之间的基本对称性。这就是欧洲核子研究中心的阿尔法实验的目标。ALPHA合作包括来自7个国家15个机构的科学家。阿尔法的加拿大小组，被称为阿尔法-加拿大，占这些科学家的三分之一以上，成员来自西蒙弗雷泽大学，TRIUMF，不列颠哥伦比亚省大学，卡尔加里大学和约克大学。* 近年来，阿尔法已经达到了许多具有高度影响力的里程碑。这包括1 S 2S跃迁的第一次激发和光谱[Nature 541，506（2017），Nature 557，71（2018）]，Lyman-alpha跃迁的第一次激发[Nature 561，211（2018）]，以及反氢超精细光谱的第一次观察[Nature 548，66（2017）]。 作为ALPHA合作的长期成员和当前的ALPHA技术协调员，我为所有这些测量做出了重大贡献。我是原位磁力测量方法的领导者，也是领导者之一。来自SFU的Hayden，来自ALPHA的超精细光谱学项目。阿尔法还进行了一项新的具有挑战性的实验，称为阿尔法-g，以测量反氢的引力质量。这将是第一次对反物质引力的重要测量。 ALPHA-g项目由CFI和三个省资助，由卡尔加里大学和ALPHA-Canada领导。有了这个新装置，加拿大科学家有机会领导关于反物质引力和光谱学的开创性新实验。** 作为卡尔加里大学的一名新教员，我请求一年的过桥资金，将我在反氢捕获和光谱学，潘宁陷阱和磁力测量方面的专业知识带到ALPHA-Canada。有了这笔资金，我将能够做出重大贡献，并为阿尔法的反氢研究计划带来新的举措。

Experimental and theoretical studies of the hydrogen atom have played a key role in the development of modern physics. To this day, atomic hydrogen's relative simplicity and precision to which its spectrum can be measured makes it an important tool for determining fundamental constants. This makes study of hydrogen's antimatter counterpart, antihydrogen, a naturally attractive system to test fundamental symmetries between matter and antimatter. This is the goal of the ALPHA experiment at CERN. The ALPHA collaboration includes scientists from 15 institutions across 7 countries. The Canadian group within ALPHA, known as ALPHA-Canada, makes up over one-third of those scientists and has members from Simon Fraser University, TRIUMF, University of British Columbia, University of Calgary, and York University. ******ALPHA has reached a number of high-impact milestones in recent years. This includes the first excitation and spectroscopy of the 1S 2S transition [Nature 541, 506 (2017), Nature 557, 71 (2018)], the first excitation of the Lyman-alpha transition [Nature 561, 211 (2018)], and the first observation of the hyperfine spectrum of antihydrogen [Nature 548, 66 (2017)]. As a long-time member of the ALPHA collaboration and the current ALPHA Technical Coordinator, I have made significant contributions to all of these measurements. I am the leader of in situ magnetometry methods and one of the leaders, with M. Hayden from SFU, of ALPHA's hyperfine spectroscopy program.*******ALPHA is also undertaking a new challenging experiment, known as ALPHA-g, to measure the gravitational mass of antihydrogen. This would be the first significant measurement of the gravitational force on antimatter. The ALPHA-g project is being funded by the CFI and three of the provinces and is led by The University of Calgary and ALPHA-Canada. With this new apparatus Canadian scientists have the opportunity to lead groundbreaking new experiments on antimatter gravity and spectroscopy. ******As a new faculty member at The University of Calgary, I am requesting one year of bridge-funding to bring my expertise in antihydrogen trapping and spectroscopy, Penning traps, and magnetometry to ALPHA-Canada. With this funding I will be able to make significant contributions and bring new initiatives to ALPHA's antihydrogen research program.***