Testing conformal symmetry with gravitational-wave detectors
Bogumila Swiezewska (Utrecht University)

In this talk the electroweak and conformal symmetry-breaking phase transition is considered within the SU(2)cSM model. It consists of the conformal standard model extended by a new gauge SU(2) group and a scalar field that is a doublet under this new symmetry. The two sectors communicate through a Higgs portal coupling. I will explain how the phase transition proceeds and show that it is very strong due to large super-cooling. I will present estimates of the gravitational-wave signal and show that it generically falls into the LISA sensitivity region. If time permits, I will also discuss potential pitfalls and relevant points for improvement required to attain reliable estimates of the gravitational wave production.