Bubble wall velocities in the Standard Model and beyond

Dorsch, G C, Huber, S and Konstandin, T (2018) Bubble wall velocities in the Standard Model and beyond. Journal of Cosmology and Astroparticle Physics, 2018 (12). 034. ISSN 1475-7516

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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.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Theoretical Particle Physics Research Group
Subjects: Q Science > QC Physics
Depositing User: Alice Jackson
Date Deposited: 10 Jan 2019 11:34
Last Modified: 06 Mar 2019 13:22
URI: http://srodev.sussex.ac.uk/id/eprint/81209

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