A REINTERPRETATION OF THE EXOTIC EVENT OBSERVED IN THE COSMIC-RAY AT YUNNAN COSMIC-RAY STATION

被引:0
作者
QING, CG
HE, ZX
GAO, CS
RUAN, TN
机构
[1] CHINESE ACAD SCI,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
[2] BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA
[3] UNIV SCI & TECHNOL CHINA,DEPT MODERN PHYS,HEFEI 230027,PEOPLES R CHINA
来源
SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY & TECHNOLOGICAL SCIENCES | 1995年 / 38卷 / 08期
关键词
EXOTIC EVENT; COSMIC RAY;
D O I
暂无
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The exotic event observed in 1972 at Yunan Cosmic Ray Station (YCRS) has been re-interpreted as a collision between a high energy heavy particle with a nucleon, with three charged particles identified as the final products. If no other missing neutral particles were produced in this collision, then one of the three particles C+ could be assigned with mass M(c)(+) > 43 GeV, and life-time tau > 0.406 x 10(-9) s. If C+ is instable, it can decay via weak interaction to C degrees and a pair of leptons. The mass difference between C+ and C degrees is estimated as less than 0.270 GeV. The relevance of this event to the dark matter problem in the Universe is also discussed.
引用
收藏
页码:954 / 962
页数:9
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