Laser spectroscopy and cooling of antihydrogen for fundamental symmetry tests with ALPHA at CERN

CERN 使用 ALPHA 进行基本对称性测试的激光光谱和反氢冷却

• 批准号: 423333-2012
• 负责人: Momose, Takamasa
• 金额: $ 6.06万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Research Tools and Instruments
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=515842
• 关键词: Laser; spectroscopy; cooling; antihydrogen; fundamental

ALPHA (Antihydrogen Laser Physics Apparatus) is an international project at CERN whose goal is to perform fundamental symmetry tests on trapped antihydrogen, the simplest atomic form of neutral antimatter. Since its approval by CERN in 2005, ALPHA has made very substantial progress. In November 2010, ALPHA announced the first stable trapping of antihydrogen atoms. Very recently, ALPHA reported the confinement of antihydrogen for as long as 1000 seconds, extending the initial trapping times by nearly 4 orders of magnitude.

ALPHA（反氢激光物理装置）是欧洲核子研究中心的一个国际项目，其目标是对捕获反氢进行基本对称性测试，反氢是中性反物质最简单的原子形式。自2005年欧洲核子研究中心批准以来，ALPHA已经取得了非常实质性的进展。2010年11月，ALPHA宣布了第一个反氢原子的稳定捕获。最近，ALPHA报告了长达1000秒的反氢约束，将初始捕获时间延长了近4个数量级。