# Resummation and cancellation of the VIA source in electroweak baryogenesis

@inproceedings{Postma2022ResummationAC, title={Resummation and cancellation of the VIA source in electroweak baryogenesis}, author={Marieke Postma and Jorinde van de Vis and Graham White}, year={2022} }

: We re-derive the vev-insertion approximation (VIA) source in electroweak baryogenesis. In contrast to the original derivation, we rely solely on 1-particle-irreducible self-energy diagrams. We solve the Green’s function equations both perturbatively and resummed over all vev-insertions. The VIA source corresponds to the leading order contribution in the gradient expansion of the Kadanoﬀ-Baym (KB) equations. We ﬁnd that it vanishes both for bosons and fermions, both in the perturbative and in…

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