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Baryon asymmetry from electroweak tachyonic preheating

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arxiv hep-ph/0310342 v1 pith:VG3FUOJP submitted 2003-10-30 hep-ph astro-phhep-lat

Anders Tranberg , Jan Smit This is my paper
classification hep-phastro-phhep-lat
keywords asymmetryhiggsbaryoneffectiveelectroweakpreheatingtachyonictransition
verification ladder T0 review T1 audit T2 compute T3 formal
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We consider a scenario in which the baryon asymmetry was created in the early universe during a cold electroweak transition. The spinodal instability of the Higgs field caused by a rapid change of sign of its effective mass-squared parameter induces tachyonic preheating. We study the development of Chern-Simons number in this transition by numerical lattice simulations of the SU(2)-Higgs model with an added effective CP-violating term. A net asymmetry is produced, and we study its dependence on the size of CP violation and the ratio of Higgs to W mass.

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Cited by 3 Pith papers

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

  1. CosmoLattice 2.0

    astro-ph.CO 2026-07 accept novelty 6.0 of 10

    CosmoLattice v2.0 extends lattice cosmology simulations with non-minimal scalars, ALP–gauge couplings, defect networks, low-storage RK integrators, optimized GWs, and O(10) GPU speedups.

  2. CosmoLattice 2.0

    astro-ph.CO 2026-07 conditional novelty 6.0 of 10

    CosmoLattice 2.0 adds non-minimally coupled scalars, axion-gauge interactions, defect initial conditions, lower-dimensional lattices, and GPU acceleration to an open-source early-universe lattice code.

  3. Impact of Primordial Magnetic Fields on the First-Order Electroweak Phase Transition

    hep-ph 2025-08 conditional novelty 5.0 of 10

    A primordial hypermagnetic field slows the first-order electroweak transition, forms Higgs vortices above g'B/m_W^2 ~ 3.63, and helical fields boost sphaleron rates and baryon asymmetry.

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