Abstract
Mechanisms for the generation of the matter-antimatter asymmetry and dark matter strongly depend on the reheating temperatureTR, the maximal temperature reached in the early universe. Forthcoming results from the LHC, low energy experiments, astrophysical observations and the Planck satellite will signicantly constrain baryogenesis and the nature of dark matter, and thereby provide valuable information about the very early hot universe. At present, a wide range of reheating temperatures is still consistent with observations. We illustrate possible origins of matter and dark matter with four examples: moduli decay, electroweak baryogenesis, leptogenesis in the MSM and thermal leptogenesis. Finally, we discuss the connection between baryogenesis, dark matter and ination in the context of supersymmetric spontaneous B-L breaking.
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