The Thermal History of Composite Dark Matter

Understand

We study the thermodynamic history of composite Dark Matter models.

• We start with classifying the models by means of the symmetries partially protecting the composite Dark Matter decays and constrain their lifetimes.
• For each model, we determine the impact of number-changing and number-conserving operators on its thermal history.
• We also develop the analytic formalism to calculate the asymptotic abundance of stable relics.