Thermodynamics of a Two-Step Electroweak Phase Transition.

  title={Thermodynamics of a Two-Step Electroweak Phase Transition.},
  author={Lauri Niemi and Michael J. Ramsey-Musolf and Tuomas Tenkanen and David J. Weir},
  journal={Physical review letters},
  volume={126 17},
New field content beyond that of the standard model of particle physics can alter the thermal history of electroweak symmetry breaking in the early Universe. In particular, the symmetry breaking may have occurred through a sequence of successive phase transitions. We study the thermodynamics of such a scenario in a real triplet extension of the standard model, using nonperturbative lattice simulations. Two-step electroweak phase transition is found to occur in a narrow region of allowed… 

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