The Parametric Space of the Two-Higgs-Doublet Model and Sakharov's Baryogenesis Conditions

Abstract

The electroweak phase transition in the Two-Higgs-Doublet Model is investigated. The Gibbs potential at finite temperature is computed with regard for the one-loop plus ring diagram contributions. The strong first-order phase transition satisfying Sakharov's baryogenesis conditions is determined for the values of scalar field masses allowed by experimental data. The relation between the model parameters supplying the phase transition to be of the first order is derived. It is shown that a sequence of phase transitions is also possible. A comparison with results of other authors is done.

Inert dark matter and strong electroweak phase transition

“…The strength of the electroweak phase transition predicted by the 2HDM was subsequently analyzed in several papers [9][10][11][12][13] which using the one-loop temperature dependent effective potential (with or without resummations of the so-called ring diagrams) have confirmed the original observations. Recently, the interest in the 2HDM [14][15][16], and in the phase transition predicted by this model in particular [17][18][19][20][21][22], has again been revived.…”

Dark matter in leptophilic Higgs models after the LHC run I

“…While the best known realization of these additional doublet models occurs in supersymmetry, which requires a minimum of two Higgs doublets and is perhaps the most popular candidate for physics beyond the Standard Model, 2HDMs can be found in a variety of other Standard Model extensions. For example, models of baryogenesis with two Higgses [3][4][5][6][7][8][9][10][11][12] can incorporate enough CP-violation to generate a sufficient baryon asymmetry, while the Standard Model alone cannot [13].…”