Electroweak Phase Transition, Scalar Dark Matter, and the LHC

Michael Ramsey-Musolf, University of Wisconsin
The existence of scalar fields are often hypothesized to address questions in early universe cosmology. In this talk, I focus on two: Was there a first order phase transition during the electroweak symmetry-breaking era, as would be required for successful electroweak baryogenesis? What is the nature of the non-baryonic dark matter? I discuss how new scalar fields might address both of these questions, present our recent work on related theoretical and phenomenological issues, and highlight a few of the signatures one might observe at the Large Hadron Collider. I argue that the observation of new scalars that address these questions in cosmology might provide additional rationale for considering the role of the scalar fields more generally in the early universe.
ACFI Seminar
LGRT 1033
Date & time: 
Friday, February 17, 2012 - 2:00pm