Explanation of the 511 keV line: cascade annihilating dark matter with the $$^8$$ 8 Be anomaly

Abstract A possible dark matter (DM) explanation about the long-standing issue of the Galactic 511 keV line is explored in this paper. For DM cascade annihilations of concern, a DM pair $$\pi _d^{+} \pi _d^{-}$$ πd+πd- annihilates into unstable $$\pi _d^{0} \pi _d^{0}$$ πd0πd0 , and $$\pi _d^{0}$$ π...

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Bibliographic Details
Main Author: Lian-Bao Jia
Format: Article
Language:English
Published: SpringerOpen 2018-02-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-018-5555-0