1-2 pm: What's still hot in Electroweak phase transitions? A perspective from three spatial dimensions over the past decade.

Title: What's still hot in Electroweak phase transitions? A perspective from three spatial dimensions over the past decade.

Abstract: Motivated by their prospects to produce potentially observable primordial gravitational wave background, as well as to provide a viable mechanism for baryogenesis, understanding the physics of Electroweak phase transitions has been a hot topic for a long time. In this talk, I will present developments from the past decade that have culminated in: i) automating the required dimensionally reduced, thermal effective field theory (EFT) descriptions; ii) gaining an intuitive understanding of the underlying 'supersoft' mass scale above the non-perturbative scale of confinement for scalar field-driven phase transitions; iii) including thermal loop corrections up to and including three loops; and iv) building effective perturbative descriptions for bubble nucleation and sphaleron rates in the thermal plasma. Finally, I will envision future directions for studying Beyond the Standard Model theories at high temperatures, and high-loop-order perturbative calculations beyond simple EFTs built upon high-temperature expansions.