First Order Electroweak Phase Transition from (Non)Conformal Extensions of the Standard Model

Understand

We analyse and compare the finite-temperature electroweak phase transition properties of classically (non)conformal extensions of the Standard Model.

• In the classically conformal scenarios the breaking of the electroweak symmetry is generated radiatively.
• The models feature new scalars coupled conformally to the Higgs sector as well as new fermions.
• We uncover the parameter space leading to a first order phase transition with(out) the Veltman conditions.