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Abstract:
The L3 detector contains a high resolution muon spectrometer. The
L3+Cosmics experiment aims at using this detector to measure
atmospheric muons. Our first goal is to record the muon momentum spectrum
at a 1%
precision in the range 20-2000 GeV/c, the charge ratio and it's angular
dependence. Also subjects like muon multiplicity distributions, upward
going muons, muon astronomy and searches for new physics will be studied
with this instrument.
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