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Dynamics of Two Higgs Doublet CP Violation and Baryogenesis at the Electroweak Phase Transition

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arxiv hep-ph/9506284 v4 pith:UMDCJMYM submitted 1995-06-09 hep-ph

James M. Cline (McGill University) , Kimmo Kainulainen (CERN) , Axel P. Vischer (University of Minnesota) This is my paper · ORCID
classification hep-ph
keywords electroweakviolationbaryogenesisbaryoncomparingleptonsmechanismmodel
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We quantitatively study the charge transport mechanism of electroweak baryogenesis in a realistic two-Higgs-doublet model, comparing the contributions from quarks and leptons reflecting from electroweak domain walls, and comparing the exact profile of the CP-violating phase with a commonly used ansatz. We note that the phenomenon of spontaneous CP violation at high temperature can occur in this model, even when there is no CP violation at zero temperature. We include all known effects which are likely to influence the baryon production rate, including strong sphalerons, the nontrivial dispersion relations of the quasiparticles in the plasma, and Debye screening of gauged charges. We confirm the claim of Joyce, Prokopec and Turok that the reflection of tau leptons from the wall gives the dominant effect. We conclude that this mechanism is marginally strong enough to produce the observed baryon asymmetry of the universe.

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Cited by 5 Pith papers

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  1. LeWRON: Agentic Analysis of Electroweak Phase Transitions

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    LeWRON is a new agentic framework that automates construction, auditing, and exploration of finite-temperature effective potentials and gravitational-wave predictions for electroweak phase transitions starting from an...

  2. Electroweak baryogenesis from charged current anomalies in $B$ meson decays

    hep-ph 2025-02 conditional novelty 6.0 of 10

    Complex lepton Yukawa couplings in a two Higgs doublet model that explain the R(D(*)) flavor anomalies can also source electroweak baryogenesis, yielding the observed baryon asymmetry under assumed strong first-order ...

  3. Forbidden neutrinogenesis

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    A neutrinophilic two-Higgs-doublet model with Dirac neutrinos can generate the observed baryon asymmetry through finite-temperature 'forbidden' leptogenesis, favoring normal neutrino mass ordering and 0 < δ_CP < π.

  4. Dark Matter and CP Violation in Some Symmetry-Constrained 3HDMs

    hep-ph 2025-06 conditional novelty 4.0 of 10

    S3-symmetric three-Higgs-doublet models allow dark matter in a 29-42 GeV window, exclude heavy candidates above 500 GeV, and admit MeV-scale light scalars, while continuous-symmetry variants produce mass-degenerate da...

  5. Super-critical primordial black hole formation via delayed first-order electroweak phase transition

    hep-ph 2025-01 conditional novelty 4.0 of 10

    Delayed first-order electroweak phase transitions can form super-critical primordial black holes, and a timescale ratio t_H/t_V captures the threshold better than the standard density contrast.

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