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

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 detect...

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Veröffentlicht in:Journal of physics. Conference series 2012-01, Vol.375 (1), p.12044-4
Hauptverfasser: Arcadi, G, Ullio, P
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description 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 equation for a system of coannihilating species without assuming kinetic equilibrium and applied it to the case of pure Winos.
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subjects Anomalies
Boltzmann transport equation
Cosmic rays
Dark matter
Decoupling
Density
Fermions
Flux
Formalism
Leptons
Mathematical analysis
Mathematical models
Physics
title Aspects of production and kinetic decoupling of non-thermal dark matter
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