Author/Authors :
Zimmermann، نويسنده , , D and Grupen، نويسنده , , A. and Kotaidis، نويسنده , , V and Luitz، نويسنده , , S and Mailov، نويسنده , , A and Müller، نويسنده , , A.-S and Putzer، نويسنده , , A and Rensch، نويسنده , , B and Sander، نويسنده , , H.-G and Schmeling، نويسنده , , S and Schmelling، نويسنده , , M and Wachsmuth، نويسنده , , H and Tcaciuc، نويسنده , , R and Ziegler، نويسنده , , Th and Zuber، نويسنده , , K، نويسنده ,
Abstract :
The ALEPH experiment at the LEP e+e− 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.
Keywords :
Charge ratio , Neutrino , shower , Muon , momentum , Cosmic ray
