Diffuse $\gamma$-rays and $\bar{p}$ flux from dark matter annihilation -- a model for consistent results with EGRET and cosmic ray data

Understand

In this work we develop a new propagation model for the Galactic cosmic rays based on the GALPROP code, including contributions from dark matter annihilation.

• The model predicts compatible Galactic diffuse $\gamma$ ray spectra with EGRET data in all sky regions.
• It also gives consistent results of the diffuse $\gamma$ ray longitude and latitude distributions.
• Further the results for B/C, $^{10}$Be/$^9$Be, proton, electron and antiproton spectra are also consistent with cosmic ray measurements.