Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-04-25
Physics
High Energy Physics
High Energy Physics - Phenomenology
22 pages, 7 figures
Scientific paper
Nearly conformal dynamics at the TeV scale as motivated by the hierarchy problem can be characterized by a stage of significant supercooling at the electroweak epoch. This has important cosmological consequences. In particular, a common assumption about the history of the universe is that the reheating temperature is high, at least high enough to assume that TeV-mass particles were once in thermal equilibrium. However, as we discuss in this paper, this assumption is not well justified in some models of strong dynamics at the TeV scale. We then need to reexamine how to achieve baryogenesis in these theories as well as reconsider how the dark matter abundance is inherited. We argue that baryonic and dark matter abundances can be explained naturally in these setups where reheating takes place by bubble collisions at the end of the strongly first-order phase transition characterizing conformal symmetry breaking, even if the reheating temperature is below the electroweak scale $\sim 100$ GeV. We also discuss inflation as well as gravity wave smoking gun signatures of this class of models.
Konstandin Thomas
Servant Geraldine
No associations
LandOfFree
Cosmological Consequences of Nearly Conformal Dynamics at the TeV scale does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Cosmological Consequences of Nearly Conformal Dynamics at the TeV scale, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmological Consequences of Nearly Conformal Dynamics at the TeV scale will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-294854