Result of search for low velocity exotic particles

The L3＋C experiment, taking advantage of the L3 muon magnetic spectrometer, measured the spatial tracks of charged cosmic ray particles to obtain rigidity as well as velocity. One possible low velocity exotic particle is observed. The existing uncertainties are discussed, and the flux upper limit of...

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Bibliographic Details
Published in:Chinese physics C 2009-08, Vol.33 (8), p.603-608
Main Author: 马欣华 丁林恺 过雅南 何祚庥 霍安祥 经才骝 况浩怀 马宇倩 庆承瑞 沈长铨 郁忠强 张超 朱清棋
Format: Article
Language:English
Subjects:
L3实验
低流速
奇异粒子
宇宙射线
搜索结果
磁谱仪
空间粒子
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Summary:The L3＋C experiment, taking advantage of the L3 muon magnetic spectrometer, measured the spatial tracks of charged cosmic ray particles to obtain rigidity as well as velocity. One possible low velocity exotic particle is observed. The existing uncertainties are discussed, and the flux upper limit of the low velocity exotic particles from this observation is deduced based on the assumption of a null observation. The result is 6.2×10^-10 cm^-2·s^-1·sr^-1 at 90% confidence level in the velocity range from 0.04c to 0.5c.
ISSN:1674-1137
0254-3052
2058-6132
DOI:10.1088/1674-1137/33/8/001