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arXiv · 1711.09849

Nonperturbative Analysis of the Electroweak Phase Transition in the Two Higgs Doublet Model

Jens O. Andersen·Tyler Gorda·Andreas Helset·Lauri Niemi·Tuomas V. I. Tenkanen·Anders Tranberg·Aleksi Vuorinen·David J. Weir
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Abstract

We perform a nonperturbative study of the electroweak phase transition (EWPT) in the two Higgs doublet model (2HDM) by deriving a dimensionally reduced high-temperature effective theory for the model, and matching to known results for the phase diagram of the effective theory. We find regions of the parameter space where the theory exhibits a first-order phase transition. In particular, our findings are consistent with previous perturbative results suggesting that the primary signature of a first-order EWPT in the 2HDM is $m_{A_0} > m_{H_0} + m_Z$.

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Jens O. Andersen, Tyler Gorda, Andreas Helset, Lauri Niemi, Tuomas V. I. Tenkanen, Anders Tranberg, Aleksi Vuorinen, David J. Weir. 2018-11-20. Nonperturbative Analysis of the Electroweak Phase Transition in the Two Higgs Doublet Model. https://doi.org/10.1103/physrevlett.121.191802

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