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Search for new massive particles in cosmic rays
Chen HS(陈和生); Dai ZJ(戴长江); Ding LK(丁林恺); Guo YN(过雅南); Huo AX(霍安祥); Jing CL(经才骝); Kuang HH(况浩怀); Liu HT(刘海涛); Ma JM(马基茂); Shen ZQ(沈长铨); Sheng HY(盛华义); Yao ZG(姚志国); Yu ZQ(郁忠强); Zhu QQ(朱清棋); Chen, HS; Dai, CJ; Ding, LK; Guo, YN; Huo, AX; Jing, CL; Kuang, HH; Liu, HT; Ma, JM; Shen, CQ; Sheng, HY; Yao, ZG; Yu, ZQ; Zhu, QQ; Ching, CR; Ho, TH; Gao, CS
1997
发表期刊PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
卷号282期号:1页码:2-34
摘要In this paper, some unusual cosmic ray events are reviewed. They are the Yunnan event recorded in 1972 using a cloud chamber at Yunnan Cosmic Ray Station (YCRS) near Kunming, the south-west of China; the six exotic events (Kolar events) collected during 1965 to 1975 in the Kolar Gold Mine Field (KGF) in south India; and a double-core event obtained also in KGF in 1979 at a depth different from that where the other six were obtained, In addition, some interesting phenomena were also noticed: the abnormal upward muon flux observed by the MINI collaboration, and several intriguing signals seen in the proton detector in KGF, A careful kinematics analysis has shown that all these exotic events are likely to be related to a kind of heavy and slow-moving (i.e. with a Lorentz factor gamma approximate to 2-5) particles produced from cosmic ray interactions. Besides, the rough flux estimates in these experiments seem to indicate that the event rate does not depend on the depth. Thus a natural hypothesis is that there is a heavy and neutral component in the cosmic rays which might be related with the long-sought weakly interacting massive particle (WIMP) - one of the most promising candidates of the dark matter of our Universe. Moreover, from the tracks seen in these events, there is also a signal of the possible existence of a kind of heavy and charged particles with a relatively long lifetime (say, longer than 10(-9) s) which might be the interacting products of the unknown cosmic ray particles mentioned above. We then turn to the question of how to search for these exotic particles in cosmic rays, and propose to build a dedicated magnetic spectrometer for identifying them.
文章类型Review
关键词cosmic ray dark matter mass of particle
学科领域Physics
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:A1997WT87400001
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225440
专题院士
粒子天体物理中心
推荐引用方式
GB/T 7714
Chen HS,Dai ZJ,Ding LK,et al. Search for new massive particles in cosmic rays[J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS,1997,282(1):2-34.
APA 陈和生.,戴长江.,丁林恺.,过雅南.,霍安祥.,...&Gao, CS.(1997).Search for new massive particles in cosmic rays.PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS,282(1),2-34.
MLA 陈和生,et al."Search for new massive particles in cosmic rays".PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS 282.1(1997):2-34.
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