Looking for a charge asymmetry in cosmic rays

Abstract

We combine the data from PAMELA and FERMI-LAT cosmic ray experiments by introducing a simple sum rule. This allows to investigate whether the lepton excess observed by these experiments is charge symmetric or not. We also show how the data can be used to predict the positron fraction at energies yet to be explored by the AMS-02 experiment.

Comments: Contribution to the proceedings of DISCRETE 2010, 5 pages, 2 figures