Iason Baldes will tell us about: A DM scenario in which inflaton decays populate the dark and visible sectors early on. The dark and visible sectors are assumed to only have gravitational interactions below this scale. Late time decays of visible sector particle dilutes the ratio of DM to SM entropy and sets the DM relic abundance. Constraints from theoretical consistency and cosmology are derived. Possible baryogenesis mechanisms are discussed.
http://arxiv.org/abs/1509.08477
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