Authors: Yanou Cui Lisa Randall Brian Shuve
Publish Date: 2012/04/16
Volume: 2012, Issue: 4, Pages: 75-
Abstract
We explore models in which weakly interacting massive particle WIMP dark matter annihilation is directly responsible for baryogenesis thereby connecting dark matter with baryogenesis We call this process “WIMPy baryogenesis” The dark matter relic density in these models as with conventional WIMP models is obtained with only order one couplings and TeVscale masses according to the WIMP miracle Thus WIMPy baryogenesis models naturally accommodate weakscale dark matter Furthermore an extension of the WIMP miracle simultaneously explains the observed baryon asymmetry and the correct dark matter abundance The models we present have the further feature that they create the baryon number asymmetry at the weak scale thereby avoiding the problems in some models of baryogenesis associated with high reheat temperatures in supersymmetric theories Some of these models yield observable consequences in ongoing and future experiments
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