Conformal model for gravitational waves and dark matter: A status update

Understand

We present an updated analysis of the first-order phase transition associated with symmetry breaking in the early Universe in a classically scale-invariant model extended with a new SU(2) gauge group.

• Including recent developments in understanding supercooled phase transitions, we compute all of its characteristics and significantly constrain the parameter space.
• We then predict gravitational wave spectra generated during this phase transition and by computing the signal-to-noise ratio we conclude that this model is well testable (and falsifiable) with LISA.
• We also provide predictions for the relic dark matter abundance.