Mikael Chala (U. Granada), [HET Seminar], Precise computation of phase-transition parameters

Thursday 9 Jan 2025, 11:00 → 12:00 US/Eastern

Small Seminar Room (https://bnl.zoomgov.com/j/1605506805?pwd=AA9rwL4hM5AwG2b0zEwDdXjzhvJjSz.1)

I will discuss recent progress in the determination of parameters of thermal-phase transitions, relevant for describing production of gravitational wave backgrounds in the early Universe, using effective field theory (EFT) methods. I will highlight the importance of including previously neglected terms in the EFT expansion and the difficulties and solutions for computing the corresponding corrections to the effective action around non-homogeneous field configurations (e.g. bounce).