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Abstract:
The history of energetic cosmic ray muon studies is reviewed, and the
unique potentials of the LEP detectors in this field are identified. Some of
the outstanding issues relevant to muon studies are noted in the context of
current research initiatives. Single muon studies are relevant to atmospheric
neutrino flux calculations, while multimuon events not only shed light on
primary composition but may also be sensitive to new physics. Other
exploratory studies, such as CosmoLep, are also noted.