scholarly journals On the validity of perturbative studies of the electroweak phase transition in the Two Higgs Doublet model

2019 ◽  
Vol 2019 (6) ◽  
Author(s):  
Kimmo Kainulainen ◽  
Venus Keus ◽  
Lauri Niemi ◽  
Kari Rummukainen ◽  
Tuomas V. I. Tenkanen ◽  
...  
Keyword(s):  
Phase Transition ◽  
Higgs Doublet ◽  
Electroweak Phase Transition ◽  
Doublet Model ◽  
Two Higgs Doublet Model

scholarly journals Effects of 2HDM in Electroweak Phase Transition

Galaxies ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 45
Author(s):  
Arnab Chaudhuri ◽  
Maxim Yu. Khlopov ◽  
Shiladitya Porey
Keyword(s):  
Phase Transition ◽  
Entropy Production ◽  
Higgs Doublet ◽  
Minimal Extension ◽  
Electroweak Phase Transition ◽  
First Order ◽  
First Order Phase Transition ◽  
Doublet Model ◽  
Two Higgs Doublet Model ◽  
First Order Phase

The entropy production scenarios due to the electroweak phase transition (EWPT) in the framework of the minimal extension of standard model, namely the two Higgs doublet model (2HDM), are revisited. The possibility of first order phase transition is discussed. Intense parameter scanning was done with the help of BSMPT, a C++ package. We perform numerical calculations in order to calculate the entropy production with numerous benchmark points.

scholarly journals Entropy Production Due to Electroweak Phase Transition in the Framework of Two Higgs Doublet Model

Physics ◽  
2021 ◽  
Vol 3 (2) ◽  
pp. 275-289
Author(s):  
Arnab Chaudhuri ◽  
Maxim Yu. Khlopov
Keyword(s):  
Phase Transition ◽  
Higgs Doublet ◽  
Electroweak Phase Transition ◽  
First Order ◽  
The Standard Model ◽  
Doublet Model ◽  
Two Higgs Doublet Model ◽  
Electroweak Precision ◽  
Scalar Sector ◽  
Higgs Signal

We revisit the possibility of first order electroweak phase transition (EWPT) in one of the simplest extensions of the Standard Model scalar sector, namely the two-Higgs-doublet model (2HDM). We take into account the ensuing constraints from the electroweak precision tests, Higgs signal strengths and the recent LHC bounds from direct scalar searches. By studying the vacuum transition in 2HDM, we discuss in detail the entropy released in the first order EWPT in various parameter planes of a 2HDM.

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

2018 ◽  
Vol 121 (19) ◽  
Author(s):  
Jens O. Andersen ◽  
Tyler Gorda ◽  
Andreas Helset ◽  
Lauri Niemi ◽  
Tuomas V. I. Tenkanen ◽  
...  
Keyword(s):  
Phase Transition ◽  
Higgs Doublet ◽  
Electroweak Phase Transition ◽  
Doublet Model ◽  
Two Higgs Doublet Model

scholarly journals Baryogenesis within the two-Higgs-doublet model in the electroweak scale

2014 ◽  
Vol 29 (20) ◽  
pp. 1450090 ◽  
Author(s):  
M. Ahmadvand
Keyword(s):  
Phase Transition ◽  
Higgs Field ◽  
Higgs Doublet ◽  
Electroweak Scale ◽  
First Order Phase Transition ◽  
True Vacuum ◽  
Doublet Model ◽  
The One ◽  
Two Higgs Doublet Model ◽  
First Order Phase

The conventional baryogenesis mechanism is based on the one Higgs doublet within the Standard Model, at the electroweak scale T ~ 100 GeV . In this model, the strong first-order phase transition due to the spontaneous symmetry breaking imposes the following condition on the mass of the Higgs field: mH ≲ 40 GeV , which is contrary to the recently observed value mH ≃ 126 GeV . In this paper, we propose a baryogenesis mechanism within a two-Higgs-doublet model in which the phase transition occurs in one stage. This model is consistent with the observed mass of the Higgs. We obtain the true vacuum bubble wall velocity and thickness in this model. Then, we use nonlocal baryogenesis mechanism in which the interaction of fermions with the boundary of the expanding bubbles leads to CP violation and sphaleron mediated baryogenesis.

scholarly journals Interplay of New Physics effects in (g − 2)ℓ and h → ℓ+ℓ− — lessons from SMEFT

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
Svjetlana Fajfer ◽  
Jernej F. Kamenik ◽  
M. Tammaro
Keyword(s):  
Closed Operator ◽  
Higgs Doublet ◽  
New Physics ◽  
Effective Field ◽  
Tree Level ◽  
Electroweak Symmetry ◽  
Scalar Leptoquark ◽  
Doublet Model ◽  
The One ◽  
Two Higgs Doublet Model

Abstract We explore the interplay of New Physics (NP) effects in (g− 2)ℓ and h→ℓ+ℓ− within the Standard Model Effective Field Theory (SMEFT) framework, including one-loop Renormalization Group (RG) evolution of the Wilson coefficients as well as matching to the observables below the electroweak symmetry breaking scale. We include both the leading dimension six chirality flipping operators including a Higgs and SU(2)L gauge bosons as well as four-fermion scalar and tensor operators, forming a closed operator set under the SMEFT RG equations. We compare present and future experimental sensitivity to different representative benchmark scenarios. We also consider two simple UV completions, a Two Higgs Doublet Model and a single scalar LeptoQuark extension of the SM, and show how tree level matching to SMEFT followed by the one-loop RG evolution down to the electroweak scale can reproduce with high accuracy the (g−2)ℓ and h→ℓ+ℓ− contributions obtained by the complete one- and even two-loop calculations in the full models.

scholarly journals Signals of new gauge bosons in gauged two higgs doublet model

2018 ◽  
Vol 78 (8) ◽  
Author(s):  
Wei-Chih Huang ◽  
Hiroyuki Ishida ◽  
Chih-Ting Lu ◽  
Yue-Lin Sming Tsai ◽  
Tzu-Chiang Yuan
Keyword(s):  
Higgs Doublet ◽  
Gauge Bosons ◽  
Doublet Model ◽  
Two Higgs Doublet Model
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