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

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

2011-06-04

arxiv.org/abs/1106.0790v2

Ukrainian Journal of Physics 2011, Vol.56, N 5, p.431-442

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 8 figures. In version 2 three references were added, and the plots were replaced by their color versions

Scientific paper

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.

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