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.

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

References in corpus (6)

• Observation of an anomalous positron abundance in the cosmic radiation
• Measurement of the Cosmic Ray e+ plus e- spectrum from 20 GeV to 1 TeV with the Fermi Large Area Telescope
• PAMELA results on the cosmic-ray antiproton flux from 60 MeV to 180 GeV in kinetic energy
• On possible interpretations of the high energy electron-positron spectrum measured by the Fermi Large Area Telescope
• High-energy electron observations by PPB-BETS flight in Antarctica
• $e^{\pm }$ Excesses in the Cosmic Ray Spectrum and Possible Interpretations

Cited by in corpus (1)

• Hints of a Charge Asymmetry in the Electron and Positron Cosmic-Ray Excesses