Atmospheric Muon and Neutrino Flux From 3-Dimensional Simulation

The atmospheric muon and neutrino flux have been simulated using the same approach which successfully accounted for the recent secondary proton, electron and positron flux measurements in orbit by the AMS experiment. For the muon flux, a good agreement is obtained with the CAPRICE and HEAT data for altitudes ranging from sea level up to about 38 km. The general features of the calculated atmospheric neutrino flux are reported and discussed. The flux obtained at the SuperKamiokande experiment location are reported and compared with other calculations. For low neutrino energies the flux obtained is significantly smaller than that used in the data analysis of underground experiment. The simulation results for the SOUDAN experiment site are also reported. PACS number(s): 96.40.Tv, 95.85.Ry, 14.60.Pq Present address: MS 309, FermiLab, P.O.Box 500, Batavia, IL 60510, USA. E-mail: [email protected] E-mail: [email protected] Corresponding author. E-mail: [email protected]