[NCTS Seminar - Particle Physics Journal Club - Special Seminar] Was There an Electroweak Phase Transition?

  • Event Date: 2023-07-07
  • High energy phenomenology
  • Speaker: Prof. Michael Ramsey-Musolf (Shanghai Jiao Tong University and University of Massachusetts Amherst)  /  Host: Prof. Cheng-Wei Chiang & Dr. Hugues Beauchesne
    Place: 4F Lecture Hall, Cosmology Hall, NTU

Title:Was There an Electroweak Phase Transition?
Time:2023/07/07 (Fri.) 10:30
Place:4F Lecture Hall, Cosmology Hall, NTU

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 and gravitational wave phenomenology.