A new way to explain the 511keV signal from the center of the Galaxy and some dark matter experiments.
The first gamma-ray line originating from outside the solar system that was ever detected is the 511 keV emission from the center of our Galaxy. The accepted explanation of this signal is the annihilation of electrons and positrons. However, despite 30 years of intense theoretical and observational investigation, the main sources of positrons have not been identified up to now. In this paper I propose an alternative explanation: the observed signal is due to atomic transitions to "small hydrogen atom," where electron is captured by proton on a small tight orbit around proton. I describe the status of the experimental search to find the small hydrogen atom both in astrophysics data and the lab, and propose new methods how to discover it in the lab directly. The reason we are interested in this problem is that it could explain some astophysics observations as well as some effects which are otherwise attributed to the dark matter.
Key words: 511 keV peak at the galactic center, small hydrogen atom, DDL atom, dark matter searching experiments
Publisher URL: http://arxiv.org/abs/1304.0833
DOI: arXiv:1304.0833v5
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