Eternal annihilations of light photinos

Details Eternal annihilations of light photinos Eternal annihilations of light photinos

1996-01-18

arxiv.org/abs/astro-ph/9601096v1

Phys.Rev. D54 (1996) 3722-3726

Astronomy and Astrophysics

Astrophysics

13 page LaTeX file (no figures)

Scientific paper

10.1103/PhysRevD.54.3722

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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