Bubble wall velocities in the Standard Model and beyond

We present results for the bubble wall velocity and bubble wall thickness during a cosmological first-order phase transition in a condensed form. Our results are for minimal extensions of the Standard Model but in principle are applicable to a much broader class of settings. Our first assumption abo...

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Bibliographic Details
Main Authors Dorsch, Glauber C, Huber, Stephan J, Konstandin, Thomas
Format Journal Article
LanguageEnglish
Published 13.09.2018
Subjects
Physics - High Energy Physics - Phenomenology
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Summary:We present results for the bubble wall velocity and bubble wall thickness during a cosmological first-order phase transition in a condensed form. Our results are for minimal extensions of the Standard Model but in principle are applicable to a much broader class of settings. Our first assumption about the model is that only the electroweak Higgs is obtaining a vacuum expectation value during the phase transition. The second is that most of the friction is produced by electroweak gauge bosons and top quarks. Under these assumptions the bubble wall velocity and thickness can be deduced as a function of two equilibrium properties of the plasma: the strength of the phase transition and the pressure difference along the bubble wall.
Bibliography:DESY 18-162
DOI:10.48550/arxiv.1809.04907