摘要
简述了宇宙中的暗物质分类、候选者及对其观测研究的意义．综述了冷暗物质粒子观测方法与结果，及其发展趋势．特别评述了Ｂｅｉｊｉｎｇ－Ｒｏｍｅ合作组ＤＡＭＡ的有关实验与新成果．给出作用截面与冷暗物质粒子质量参数平面内目前世界上最低的排除域，以及首例的冷暗物质粒子年调制效应：其平均值＜Ｓｍ＞＝０．０３７±０．００８ｃｐｄ／ｋｇ·ｋｅＶ，参量估计其质量约为６０ＧｅＶ／ｃ２，这可能隐含着冷暗物质粒子的存在．为确认之，尚需更高统计量的验证和重复性的检验。
The dark matter in Universe, its class and candidates, and the significanceof observation are briefly described. The methods and results and its progress ofdetection for the cold dark matter particles are reviewed, in particular, the observationof DAMA collab. (Beijing-Rome) gives the new limit on WIMP search and the firstannual modulation signature: <Sm> =0.037±0.008 cpd/keV. kg, the eshmatedWIMP mass=60GeV/c2. It is possibly the hint of the existence of WIMP.
出处
《高能物理与核物理》
CSCD
北大核心
1999年第7期728-737,共10页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金
关键词
冷暗物质粒子
间接探测
直接探测
宇宙
统计
Particle of cold dark matter, indirect detection, direct detection, statisticanalysis, annual modulation
