First results from the L3+C experiment at CERN

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作者
Hebbeker, T [1 ]
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[1] Humboldt Univ, D-10115 Berlin, Germany
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O412 [相对论、场论]; O572.2 [粒子物理学];
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摘要
The L3+C experiment combines the high precision muon spectrometer of the L3 detector at LEP, CERN, with a small air shower array. Cosmic ray muon events can be measured in the momentum range from 20 to 2000 GeV. Multi-muon events allow - together with a shower energy measurement in the scintillator array - to constrain the chemical composition of the primary nuclei. Until summer 2000 about 8 billion muons and 25 million air shower events have been recorded. Here, we report first results on the momentum spectrum and the muon charge ratio.
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页码:1028 / 1030
页数:3
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