Aspects of the cosmological electroweak phase transition

  title={Aspects of the cosmological electroweak phase transition},
  author={D. Bodeker and W. Buchmuller and Z. Fodor and T. Helbig},
  journal={Nuclear Physics},
Abstract We study the decay of the metastable symmetric phase in the standard model at finite temperature. For the SU(2)-Higgs model the two wave function correction terms Zϕ(ϕ2, T) and Zx(ϕ2, T) of Higgs and Goldstone boson fields are calculated to one-loop order. We find that the derivative expansion of the effective action is reliable for Higgs masses smaller than the W-boson mass. We propose a new procedure to evaluate the decay rate by first integrating out the vector field and the… Expand
Two Higgs doublet dynamics at the electroweak phase transition: a non-perturbative study
Using a three-dimensional (3d) effective field theory and non-perturbative lattice simulations, we study the MSSM electroweak phase transition with two dynamical Higgs doublets. We first carry out aExpand
Effective scalar field theory for the electroweak phase transition
We investigate an effective model for the finite temperature symmetry restoration phase transition of the electroweak theory. It is obtained by dimensional reduction of the 3 + 1 dimensional fullExpand
Numerical tests of the electroweak phase transition and thermodynamics of the electroweak plasma
Abstract The finite temperature phase transition in the SU(2) Higgs model at a Higgs boson mass MH ≅ 34 GeV is studied in numerical simulations on four-dimensional lattices with time-like extensionsExpand
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Baryon Asymmetry of the Universe and the Electroweak Phase Transition
The present baryon asymmetry of the universe has finally been determined at the finite temperature electroweak phase transition. The strength of this transition plays a crucial role. The effectiveExpand
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In theories with low energy supersymmetry breaking, the effective potential for squarks and sleptons has generically nearly flat directions, V (φ) ∼ M 4 (log(φ/M)) n . This guarantees the existenceExpand
The sphaleron rate in the “symmetric” electroweak phase
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We study the finite temperature electroweak phase transition with lattice perturbation theory and Monte Carlo techniques. Dimensional reduction is used to approximate the full four-dimensional SU(2)Expand
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Abstract We discuss the finite-temperature effective potential of the Standard Model, Veff(φ,T), with emphasis on the resummation of the most important infrared contributions. We compute the one-loopExpand
First-order phase transitions in scalar electrodynamics
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Thermalization of the Higgs field at the electroweak phase transition
Abstract The thermalization rate for long wavelength fluctuations in the Higgs field is calculated from the imaginary part of the finite temperature effective action in the unbroken phase of theExpand
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Running gauge coupling in three dimensions and the electroweak phase transition
Abstract We present a method which allows us to deal with the strong infrared effects in three-dimensional gauge theories. In particular, we compute the three-dimensional running of the gaugeExpand