Nonperturbative analysis of the electroweak phase transition in the two Higgs doublet model

Andersen, Jens Oluf; Gorda, Tyler; Helset, Andreas; Niemi, Lauri; Tenkanen, Tuomas V.I.; Tranberg, Anders; Vuorinen, Aleksi; Weir, David J.
Journal article, Peer reviewed
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URI
http://hdl.handle.net/11250/2592129
Date
2018-11
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Original version
Andersen, J.O., Gorda,T., Helset, A. et al. (2018) Nonperturbative analysis of the electroweak phase transition in the two Higgs doublet model. Physical Review Letters, 121(19), 1-6.   10.1103/PhysRevLett.121.191802
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 perturbativeresults suggesting that the primary signature of a first-order EWPTin the 2HDM is mA0 >m H0 þmZ.
Publisher
The American Physical Society
Journal
Physical Review Letters
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