Phase transitions and baryogenesis from decays

  title={Phase transitions and baryogenesis from decays},
  author={Brian Shuve and Carlos Tamarit},
  journal={Journal of High Energy Physics},
A bstractWe study scenarios in which the baryon asymmetry is generated from the decay of a particle whose mass originates from the spontaneous breakdown of a symmetry. This is realized in many models, including low-scale leptogenesis and theories with classical scale invariance. Symmetry breaking in the early universe proceeds through a phase transition that gives the parent particle a time-dependent mass, which provides an additional departure from thermal equilibrium that could modify the… 

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