Simulations of a bubble wall interacting with an electroweak plasma

Mou, Zong-Gang; Saffin, Paul M.; Tranberg, Anders

Abstract

We perform large-scale real-time simulations of a bubble wall sweeping through an out-of-equilibrium plasma. The scenario we have in mind is the electroweak phase transition, which may be first order in extensions of the Standard Model, and produce such bubbles. The process may be responsible for baryogenesis and can generate a background of primordial cosmological gravitational waves. We study thermodynamic features of the plasma near the advancing wall, the generation of Chern-Simons number/Higgs winding number and consider the potential for CP-violation at the wall generating a baryon asymmetry. A number of technical details necessary for a proper numerical implementation are developed.

Citation

Mou, Z.-G., Saffin, P. M., & Tranberg, A. (2021). Simulations of a bubble wall interacting with an electroweak plasma. Journal of High Energy Physics, 2021(2), Article 189. https://doi.org/10.1007/jhep02%282021%29189

• Journal Article Type: Article
• Acceptance Date: Jan 8, 2021
• Online Publication Date: Feb 22, 2021
• Publication Date: 2021-02
• Deposit Date: Feb 26, 2021
• Publicly Available Date: Feb 26, 2021
• Journal: Journal of High Energy Physics
• Publisher: Springer Verlag
• Peer Reviewed: Peer Reviewed
• Volume: 2021
• Issue: 2
• Article Number: 189
• DOI: https://doi.org/10.1007/jhep02%282021%29189
• Keywords: Nuclear and High Energy Physics
• Public URL: https://nottingham-repository.worktribe.com/output/5352813
• Publisher URL: https://link.springer.com/article/10.1007%2FJHEP02%282021%29189