APEC Seminar (Astronomy - Particle Physics - Experimental Physics - Cosmology)

Speaker: Michael Ramsey Musolf (University of Massachusetts-Amherst)
Title: Was There an Electroweak Phase Transition?
Date (JST): Fri, Mar 04, 2022, 09:00 - 10:00
Place: Zoom
Related File: 2775.pdf
Abstract: The possible existence of beyond Standard Model physics at the TeV scale or below has important implications for the thermal history of electroweak symmetry-breaking. A first order phase transition -- not possible in the minimal Standard Model with a 125 GeV Higgs boson -- would provide the preconditions for electroweak baryogenesis and the generation of primordial gravitational radiation. I discuss recent developments in assessing this possibility that rely on the combination of EFT methods and non-perturbative (lattice) computations. I also discuss implications for high energy collider phenomenology and next generation gravitational wave searches.