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arXiv · astro-ph/9601096

Eternal annihilations of light photinos

Edward W. Kolb·Antonio Riotto
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Abstract

In a class of low-energy supersymmetry models the photino is a natural dark matter candidate. We investigate the effects of post-freeze-out photino annihilations which can generate electromognetic cascades and lead to photo-destruction of $^4$He and subsequent overproduction of D and $^3$He. We also generalize our analysis to a generic dark matter component whose relic abundance is {\it not} determined by the cross section of the self-annihilations giving rise to electromagnetic showers.

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Edward W. Kolb, Antonio Riotto. 1996-01-18. Eternal annihilations of light photinos. https://doi.org/10.1103/physrevd.54.3722

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