CERN Accelerating science

Article
Report number arXiv:1110.4325 ; SLAC-PUB-14991
Title Spectrum and Charge Ratio of Vertical Cosmic Ray Muons up to Momenta of 2.5 TeV/c
Author(s)

Schmelling, M. (Heidelberg, Max Planck Inst.) ; Hashim, N.O. (Kenyatta U. Coll.) ; Grupen, C. (Siegen U.) ; Luitz, S. (SLAC) ; Maciuc, F. (Heidelberg, Max Planck Inst.) ; Mailov, A. (Siegen U.) ; Müller, A.-S. (KIT, Karlsruhe) ; Sander, H.-G. (Mainz U., Inst. Phys.) ; Schmeling, S. (CERN) ; Tcaciuc, R. (Siegen U.) ; Wachsmuth, H. (CERN) ; Zuber, K. (Dresden, Tech. U.)

Publication 2013
Imprint 20 Oct 2011
Number of pages 5
Note Comments: 4 pages, 3 figures, 1 table
In: Astropart. Phys. 49 (2013) 1-5
DOI 10.1016/j.astropartphys.2013.07.008
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LEP ; ALEPH
Abstract 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 10^15 eV.



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 Record created 2011-10-20, last modified 2020-06-29


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