On the Higgs fit and electroweak phase transition

  title={On the Higgs fit and electroweak phase transition},
  author={Wei-Chih Huang and Jing Shu and Yue Zhang},
  journal={Journal of High Energy Physics},
A bstractWe consider the Higgs portal through which light scalars contribute both to the Higgs production and decay and Higgs effective potential at finite temperature via quantum loops. The positive Higgs portal coupling required by a strongly first order electroweak phase transition is disfavored by the current Higgs data if we consider one such scalar. We observe that by introducing a second scalar with negative Higgs portal coupling, one can not only improve the Higgs fits, but also enhance… 
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