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arXiv · 2209.06509

Dynamics of bubble walls at the electroweak phase transition

Stefania De Curtis·Luigi Delle Rose·Andrea Guiggiani·Ángel Gil Muyor·Giuliano Panico
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Abstract

First order phase transitions in the early universe naturally lead to the production of a stochastic background of gravitational waves and to the generation of a matter-antimatter asymmetry. The dynamics of the phase transition is affected by the density perturbations in the hot plasma. We address this topic by providing, for the first time, a full numerical solution to the linearized Boltzmann equation for the top quark species coupled to the Higgs field during a first order phase transition at the electroweak scale. Differently from the traditional approaches, our results do not depend on any ansatz and can fully describe the non-equilibrium distribution functions of the particle species in the plasma.

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Stefania De Curtis, Luigi Delle Rose, Andrea Guiggiani, Ángel Gil Muyor, Giuliano Panico. 2022-09-14. Dynamics of bubble walls at the electroweak phase transition. https://doi.org/10.1051/epjconf/202227000035

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