The "Dark disk" model in the light of DAMPE experiment

Abstract

There are a lot of models considering the Dark Matter (DM) to be the origin of cosmic ray (CR) positron excess. However, they face an obstacle in the form of gamma-rays. Simple DM models tend to overproduce gamma-rays, leading to contradiction with isotropic gamma-ray background (IGRB). The <<dark disk>> model has been proposed to alleviate this contradiction. This work considers results of DAMPE experiment in the framework of the disk model. It is obtained that such a framework allows improving data fit considerably.

8 pages, 1 figure, 1 table; to appear in Proceedings of the 23rd Bled Workshop "What Comes Beyond Standard Models?"

References in corpus (3)

• Observation of an anomalous positron abundance in the cosmic radiation
• The spectrum of isotropic diffuse gamma-ray emission between 100 MeV and 820 GeV
• The DAMPE excess and gamma-ray constraints

Cited by in corpus (1)

• On the Possible Asymmetry in Gamma Rays from Andromeda Due to Inverse Compton Scattering of Star Light on Electrons from Dark Matter Annihilation