Electroweak bubbles and sphalerons

Brihaye, Yves; Kunz, Jutta

doi:10.1103/physrevd.48.3884

Cited by 24 publications

(26 citation statements)

References 21 publications

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“…Such a task, having been achieved in the case of one Higgs field in the Standard Model [29], was still missing in the case of two-Higgs field models.…”

Section: Introductionmentioning

confidence: 99%

Bubbles in the supersymmetric standard model

1998

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We compute the tunneling probability from the symmetric phase to the true vacuum, in the first order electroweak phase transition of the MSSM, and the corresponding Higgs profiles along the bubble wall. We use the resummed two-loop temperature-dependent effective potential, and pay particular attention to the light stop scenario, where the phase transition can be sufficiently strongly first order not to wipe off any previously generated baryon asymmetry. We compute the bubble parameters which are relevant for the baryogenesis mechanism: the wall thickness and ∆β. The two-loop corrections provide important enhancement effects, with respect to the one-loop results, in the amount of baryon asymmetry.

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“…Such a task, having been achieved in the case of one Higgs field in the Standard Model [29], was still missing in the case of two-Higgs field models.…”

Section: Introductionmentioning

confidence: 99%

Bubbles in the supersymmetric standard model

1998

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“…The sphaleron rate per unit time per unit volume, Γ/V, is characterized by a Boltzmann factor, exp (-ε/T), as follows (Arnold and McLerran, 1987;1988;Brihaye and Kunz, 1993):…”

Section: Electroweak Sphalerons In the Reduced Minimal 3-3-1 Modelmentioning

confidence: 99%

Early Universe in the SU(3)<sub>L</sub>?(1)<sub>X</sub> Electroweak Models

Long¹

2016

Physics International

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Abstract:We present status of the 3-3-1 models and their implications to cosmological evolution such as inflation, phase transitions and sphalerons. The models can deal not only with the issues such as neutrino physics, dark matter, etc, but they are also able to provide quite good agreement with the Standard Cosmology: The inflation happens at the GUT scale, while phase transition has two sequences corresponding two steps of symmetry breaking in the models, namely: SU(3) → SU(2) and SU(2) → U(1). Some bounds on the model parameters are obtained: in the RM331, the mass of the heavy neutral Higgs boson is fixed in the range: 285.56GeV < Mh2 < 1.746TeV and for the doubly charged scalar: 3.32TeV < Mh--< 5.61TeV.

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“…The sphaleron rate per unit time per unit volume, Γ/V , is characterized by a Boltzmann factor, exp (−E /T ), as follows [56][57][58]:…”

Section: Electroweak Sphalerons In the Reduced Minimal 3-3-1 Modelmentioning

confidence: 99%

Challenges in particle physics and 3-3-1 models

Long¹

2015

Comm. in Phys.

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Abstract. At present, particle physics faces problems related with disparity in diphoton decay of Higgs boson, discrepancy between theory and experiment of about 3.6σ in anomalous magnetic moment of the muon and neutrino physics. Moreover, the existence of Dark Matter and the Matter-Antimatter Asymmetry are challenges for any physical model. In this review I present some solutions in the framework of the 3-3-1 models. The simple (by Higgs sector) models contain the hybrid inflationary scenario and the first-order phase transitions, from which leptogenesis needed for BAU is followed. By these considerations, some bounds on model parameters are derived.Keywords: particle-theory and field-theory models of the early Universe, supersymmetric models, non-standard-model neutrinos, right-handed neutrinos.

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Electroweak bubbles and sphalerons

Cited by 24 publications

References 21 publications

Bubbles in the supersymmetric standard model

Bubbles in the supersymmetric standard model

Early Universe in the SU(3)<sub>L</sub>?(1)<sub>X</sub> Electroweak Models

Challenges in particle physics and 3-3-1 models

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