Gravitational waves from first-order phase transitions: LIGO as a window to unexplored seesaw scales

@article{Brdar2018GravitationalWF,
  title={Gravitational waves from first-order phase transitions: LIGO as a window to unexplored seesaw scales},
  author={Vedran Brdar and Alexander J. Helmboldt and Jisuke Kubo},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2018},
  volume={2019},
  pages={021 - 021}
}
Within a recently proposed classically conformal model, in which the generation of neutrino masses is linked to spontaneous scale symmetry breaking, we investigate the associated phase transition and find it to be of strong first order with a substantial amount of supercooling. Carefully taking into account the vacuum energy of the meta-stable minimum, we demonstrate that a significant fraction of the model's parameter space can be excluded simply because the phase transition cannot complete… 

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