Fluxes of Atmospheric Neutrinos and Related Cosmic Rays
arXiv:hep-ph/9811315 · doi:10.1016/S0920-5632(99)00408-9
Abstract
The atmospheric neutrino beam simultaneously spans a range of pathlengths from ten to ten thousand kilometers, which correspond respectively to downward- and upward-going neutrinos. As with any neutrino oscillation experiment, also in this case the interpretation of the data depends on a detailed knowledge of the neutrino beam. The ingredients are the primary spectrum of cosmic-ray nucleons, the geomagnetic fields in which the charged particles propagate and the properties of interactions of hadrons in the atmosphere. In this talk I review the status of calculations in light of the recent evidence for neutrino oscillations from Super-Kamiokande (Y. Fukuda et al., Phys. Rev. Letters 81 (1998) 1562).
8 pages LaTeX, 3 figures, talk given at Neutrino98, Takayama, Japan, 4-9 June, 1998