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Spectrum and Charge Ratio of Vertical Cosmic Ray Muons up to Momenta of 2.5 TeV/c

Journal Article · · arXiv:1110.4325v1
OSTI ID:1050863
The ALEPH detector at LEP has been used to measure the momentum spectrum and charge ratio of vertical cosmic ray muons underground. The sea-level cosmic ray muon spectrum for momenta up to 2.5 TeV/c has been obtained by correcting for the overburden of 320 meter water equivalent (mwe). The results are compared with Monte Carlo models for air shower development in the atmosphere. From the analysis of the spectrum the total flux and the spectral index of the cosmic ray primaries is inferred. The charge ratio suggests a dominantly light composition of cosmic ray primaries with energies up to 10{sup 15} eV.
Research Organization:
SLAC National Accelerator Laboratory (SLAC)
Sponsoring Organization:
US DOE Office of Science (DOE SC)
DOE Contract Number:
AC02-76SF00515
OSTI ID:
1050863
Report Number(s):
SLAC-PUB-14991; arXiv:1110.4325
Journal Information:
arXiv:1110.4325v1, Journal Name: arXiv:1110.4325v1
Country of Publication:
United States
Language:
English

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