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Semiclassical force for electroweak baryogenesis: three-dimensional derivation

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arxiv hep-ph/0202177 v1 pith:NTNP65LN submitted 2002-02-19 hep-ph

Kimmo Kainulainen , Tomislav Prokopec , Michael G. Schmidt , Steffen Weinstock This is my paper · ORCID
classification hep-ph
keywords forcesemiclassicalcp-violatingelectroweakequationexcitationsfirsth-bar
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We derive a semiclassical transport equation for fermions propagating in the presence of a CP-violating planar bubble wall at a first order electroweak phase transition. Starting from the Kadanoff-Baym (KB) equation for the two-point (Wightman) function we perform an expansion in gradients, or equivalently in the Planck constant h-bar. We show that to first order in h-bar the KB equations have a spectral solution, which allows for an on-shell description of the plasma excitations. The CP-violating force acting on these excitations is found to be enhanced by a boost factor in comparison with the 1+1-dimensional case studied in a former paper. We find that an identical semiclassical force can be obtained by the WKB method. Applications to the MSSM are also mentioned.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Systematic derivation of the Boltzmann equation for electroweak baryogenesis

    hep-ph 2026-07 conditional novelty 6.0 of 10

    A Kadanoff-Baym derivation yields Boltzmann equations with self-energy-corrected quasiparticle shells, adding a CP-violating velocity and force correction for fermions and none for bosons.

  2. Tachyonic particle production: quantum 2PI formalism with momentum exchanging collisions

    hep-ph 2026-06 unverdicted novelty 6.0 of 10

    Presents a self-consistent reduction of non-local next-to-leading-order 2PI equations to local quantum kinetic equations that incorporate momentum exchange during tachyonic instabilities.

  3. DMRadio-Core: A new approach for GUT-scale axion searches

    hep-ex 2026-04 unverdicted novelty 6.0 of 10

    Electroweak-symmetric domain walls produce the observed baryon asymmetry when CP-odd sources and the hierarchy of wall, source, and diffusion lengths suppress face-to-face cancellation.

  4. 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 ...

  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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