Atmospheric neutrinos from charm

Abstract

Using next-to-leading order perturbative QCD, we find that the charm contribution to the atmospheric lepton fluxes dominates over the conventional ones from pi and K decays for energies higher than 10^5 GeV. We also discuss theoretical uncertainties involved in the calculations and compare our results with previous evaluations.

Comments: 5 pages, 1 figure, submitted to the Proceedings of the International Workshop on Particle Physics and the Early Universe (COSMO-98), ed. David Caldwell, Asilomar, Monterey, California, November 15-20, 1998