Speaker
Liliana Velasco Sevilla
(Sogang University)
Description
Collider-based searches for new physics are inherently limited in both energy reach and experimental precision. In contrast, first-order phase transitions (FOPTs) in the early universe can probe much higher fundamental scales, making it valuable to place observational constraints on a broad class of models. We propose a combined statistical analysis across multiple frequency bands that can set limits on FOPT signals at specific energy scales and serve as a general framework for constraining couplings and masses in a wide range of theories. In this talk, I present a concrete example using real LIGO data to derive constraints on a generic U(1) model.
