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

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http://hdl.handle.net/10138/268482

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Andersen , J O , Gorda , T , Helset , A , Niemi , L , Tenkanen , T V , Tranberg , A , Vuorinen , A & Weir , D J 2018 , ' Nonperturbative Analysis of the Electroweak Phase Transition in the Two Higgs Doublet Model ' , Physical Review Letters , vol. 121 , no. 19 , 191802 . https://doi.org/10.1103/PhysRevLett.121.191802

Title: Nonperturbative Analysis of the Electroweak Phase Transition in the Two Higgs Doublet Model
Author: Andersen, Jens O.; Gorda, Tyler; Helset, Andreas; Niemi, Lauri; Tenkanen, Tuomas V.; Tranberg, Anders; Vuorinen, Aleksi; Weir, David J.
Contributor: University of Helsinki, Department of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
Date: 2018-11-07
Language: eng
Number of pages: 6
Belongs to series: Physical Review Letters
ISSN: 0031-9007
URI: http://hdl.handle.net/10138/268482
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(A0) > m(H0) + m(Z).
Subject: TEMPERATURE DIMENSIONAL REDUCTION
FINITE-TEMPERATURE
STANDARD MODEL
PERTURBATION-THEORY
MSSM
114 Physical sciences
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