L_α Line of Dark Positronium as a Nongravitational Detection of DM

V. Burdyuzha^1*, V. Charugin²

¹Astro-Space Center, Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia.
²Moscow Pedagogical State University, Moscow, Russia.

DOI: 10.4236/jmp.2015.613187                

Abstract

An attempt to predict the new atomic dark matter lines is done on the example of a dark lepton atom-positronium. Its Layman-alpha line with the energy near 3 GeV may be observable if the appropriate conditions are realized. For this we have studied a γ-ray excess in the center of our galaxy. In principle, this excess may be produced by the L_α line of a dark positronium in the medium with Compton scattering. The possibility of observations of an annihilation line (E~300 TeV) of dark positronium is also predicted. Other proposals to observe the atomic dark matter are shortly described. Besides, H_α line (1.3μ) of usual positronum must be observable in the direction on the center of our galaxy.

Keywords

Atomic Dark Matter, Positronium, Compton Scattering

Conflicts of Interest

The authors declare no conflicts of interest.

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