Gravitational waves from conformal symmetry breaking

  title={Gravitational waves from conformal symmetry breaking},
  author={Tomislav Prokopec and Jonas Rezacek and Bogumiła Świeżewska},
  journal={Journal of Cosmology and Astroparticle Physics},
We consider the electroweak phase transition in the conformal extension of the standard model known as SU(2)cSM. Apart from the standard model particles, this model contains an additional scalar and gauge field that are both charged under the hidden SU(2)$_X$. This model generically exhibits a very strong phase transition that proceeds after a large amount of supercooling. We estimate the gravitational wave spectrum produced in this model and show that its amplitude and frequency fall within… 

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