The Higgs Portal and Cosmology
  Higgs portal interactions provide a simple mechanism for addressing two open problems in cosmology: dark matter and the baryon asymmetry. In the latter instance, Higgs portal interactions may contain the ingredients for a strong first order electroweak phase transition as well as new CP-violating interactions as needed for electroweak baryogenesis. These interactions may also allow for a viable dark matter candidate. We survey the opportunities for probing the Higgs portal as it relates to these questions in cosmology at the LHC and possible future colliders. 
Ketevi Assamagan, Chien-Yi Chen, John Paul Chou, David Curtin, Michael   A. Fedderke, Yuri Gershtein, Xiao-Gang He, Markus K...
hep-ph