物理
物理
물리
2015年
5期
304-310
,共7页
对称性%反物质超核%反氦4原子核%反氢原子%正电子反常增加
對稱性%反物質超覈%反氦4原子覈%反氫原子%正電子反常增加
대칭성%반물질초핵%반양4원자핵%반경원자%정전자반상증가
symmetry%anti-hypertriton%anti-helium-4%anti-hydrogen%excess of positrons
文章简要回顾了反物质研究历史,重点阐述了过去几年反物质研究领域的新结果,包括美国布鲁克海汶国家实验室的相对论重离子对撞机(RHIC)上观测到的首个反物质超核信号和迄今为止最重的反物质原子核——反氦4.同时,还介绍了欧洲核子中心(CERN)反氢原子捕捉的新结果以及宇宙空间站上α磁谱仪(AMS)二期的新进展等,并讨论了这些进展对认识物质结构的启示.
文章簡要迴顧瞭反物質研究歷史,重點闡述瞭過去幾年反物質研究領域的新結果,包括美國佈魯剋海汶國傢實驗室的相對論重離子對撞機(RHIC)上觀測到的首箇反物質超覈信號和迄今為止最重的反物質原子覈——反氦4.同時,還介紹瞭歐洲覈子中心(CERN)反氫原子捕捉的新結果以及宇宙空間站上α磁譜儀(AMS)二期的新進展等,併討論瞭這些進展對認識物質結構的啟示.
문장간요회고료반물질연구역사,중점천술료과거궤년반물질연구영역적신결과,포괄미국포로극해문국가실험실적상대론중리자대당궤(RHIC)상관측도적수개반물질초핵신호화흘금위지최중적반물질원자핵——반양4.동시,환개소료구주핵자중심(CERN)반경원자포착적신결과이급우주공간참상α자보의(AMS)이기적신진전등,병토론료저사진전대인식물질결구적계시.
We briefly review the history of research on antimatter, focusing on new results from the past few years, namely, the observation of the first antimatter hypernucleus and the heavi-est antimatter nucleus so far, anti-helium-4, in the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. In addition, we present new results on antihydrogen atom capture from the European Organization for Nuclear Research (CERN), and describe the progress of the Alpha Mag-netic Spectrometer phase-II experiment on the space station. Finally, the implications of these de-velopments for understanding the structure of matter are discussed.
