Chinese Physics C > 2009, Vol. 33 > Issue(8): 603-608 DOI: 10.1088/1674-1137/33/8/001

Result of search for low velocity exotic particles

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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^－10cm^－2﹒s^－1﹒sr^－1at 90% confidence level in the velocity range from 0.04c to 0.5c.

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MA Xin-Hua, DING Lin-Kai, GUO Ya-Nan, HE Zuo-Xiu, HUO An-Xiang, JING Cai-Liu, KUANG Hao-Huai, MA Yu-Qian, QING Cheng-Rui, SHEN Chang-Quan, YU Zhong-Qiang, ZHANG Chao and ZHU Qing-Qi. Result of search for low velocity exotic particles[J]. Chinese Physics C, 2009, 33(8): 603-608. doi: 10.1088/1674-1137/33/8/001

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Received: 2008-11-19
Revised: 2009-02-19

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Result of search for low velocity exotic particles

Corresponding author:MA Xin-Hua,

Received Date:2008-11-19

Accepted Date:2009-02-19

Available Online:2009-08-05

Abstract: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^－10cm^－2﹒s^－1﹒sr^－1at 90% confidence level in the velocity range from 0.04c to 0.5c.

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Result of search for low velocity exotic particles

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通讯作者:陈斌, bchen63@163.com

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