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The cosmic ray muon spectrum and charge ratio in CosmoALEPH

✍ Scribed by D Zimmermann; C Grupen; V Kotaidis; S Luitz; A Mailov; A.-S Müller; A Putzer; B Rensch; H.-G Sander; S Schmeling; M Schmelling; H Wachsmuth; R Tcaciuc; Th Ziegler; K Zuber

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
196 KB
Volume
525
Category
Article
ISSN
0168-9002

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✦ Synopsis

The ALEPH experiment at the LEP e þ e À storage ring at CERN has been used to measure the momentum spectrum of cosmic ray muons. ALEPH is located at a vertical depth of 320 m:w:e: underground close to the Jura mountains. The high resolution of the time projection chamber (TPC) of ALEPH allows to reconstruct muon tracks with momenta up to the TeV region. The measured muon momentum spectrum and the charge ratio in the range from 80 to 2500 GeV are presented. After corrections for energy loss in the overburden the sea level muon spectrum at nearly vertical incidence is obtained. The experimental data are compared to theoretical expectations and results from other experiments.

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