Aspects of production and kinetic decoupling of non-thermal dark matter

Details Aspects of production and kinetic decoupling of non-thermal dark matter Aspects of production and kinetic decoupling of non-thermal dark matter

2011-11-28

arxiv.org/abs/1111.6532v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Proceedings for the conference TAUP 2011

Scientific paper

We reconsider non-thermal production of WIMP dark matter in a systematic way and using a numerical code for accurate computations of dark matter relic densities. Candidates with large pair annihilation rates are favored, suggesting a connection with the anomalies in the lepton cosmic-ray flux detected by Pamela and Fermi. Focussing on supersymmetric models we will consider the impact of non-thermal production on the preferred mass scale for dark matter neutralinos. We have also developed a new formalism to solve the Boltzmann's equation for a system of coannihilating species without assuming kinetic equilibrium and applied it to the case of pure Winos.

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