PIKIMO Fall 2024

Session

11:00-11:40

16 Nov 2024, 11:00

8. Two-Higgs-Doublet Model Effective Field Theory

Keith Hermanek (Indiana University)

16/11/2024, 11:00

We introduce the general two-Higgs-doublet model effective field theory where the effects of new physics are parametrized by operators up to mass dimension-six. We discuss the differences of the effective field in four types of two-Higgs-doublet models distinguished by $Z_2$ symmetries which restrict the couplings of the Higgs doublets to Standard Model fermions: type-I, -II, -X, and -Y. We...

9. Looking for Stringy Bosenova

Dawid Brzeminski

16/11/2024, 11:20

Black hole superradiance is an exciting tool to probe ultralight fields. In the case of gauge bosons, the buildup of electromagnetic fields in the superradiance cloud can lead to a phase transition, producing dark photon strings. After absorbing energy from the background gauge fields, these strings are ejected from the black hole, forming an expanding cloud. In this talk, we will explore the...