Possible structure in the cosmic ray electron spectrum measured by the ATIC-2 and ATIC-4 experiments

Understand

A strong excess in a form of a wide peak in the energy range of 300-800 GeV was discovered in the first measurements of the electron spectrum in the energy range from 20 GeV to 3 TeV by the balloon-borne experiment ATIC (J.

• Chang et al.
• Nature, 2008).
• The experimental data processing and analysis of the electron spectrum with different criteria for selection of electrons, completely independent of the results reported in (J.