In this talk, I will discuss a new sizable source of baryon number violation at zero temperature from Higgs bubble collisions in a strongly first-order electroweak phase transition, thus opening up new possibilities of realizing electroweak baryogenesis in models with a low reheat temperature and large bubble wall velocity. The production of baryon number can be attributed to the dynamics of Standard Model electroweak textures, which are non-trivial Higgs field configurations formed upon spontaneous electroweak symmetry breaking. Textures can decay leading to transitions in the Chern-Simons number, which is converted into baryon number via the Standard Model chiral anomaly. I will present our results on the dependence of the rate of Chern-Simons number transitions on the shape of the scalar potential and on the Lorentz factor of the bubble walls at collision, obtained via large-scale (3+1)D lattice simulations of the Higgs doublet and SU(2)-gauge fields. Eventually, I will address some possible extensions of this work, such as implementing a dynamical CP-violating source on the lattice. This talk is mainly based on [2508.21825].

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