Dynamics of bubble walls at the electroweak phase transition
arXiv:2209.06509 · doi:10.1051/epjconf/202227000035
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.
arXiv comment7 pages, 2 figures, presented by Luigi Delle Rose at QCD@Work-International Workshop on QCD - Theory and Experiment, 27-30 June 2022
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