Speaker
Description
Bayesian inference provides powerful constraints from LIGO gravitational wave observations, yet model-independent parameter reconstruction alone cannot unambiguously distinguish competing theoretical frameworks. We examine the limitations of standard Bayesian analysis and argue that unambiguous physical insight requires embedding LIGO, or any other GW experiment, constraints within concrete particle physics models.
We demonstrate this approach through three case studies: B-L symmetric models, extended SU(N) gauge theories, and inflationary models with dark sectors. For each, we show how model-specific parameter reconstruction yields testable predictions unavailable from model-agnostic Bayesian analysis. Our results highlight the necessity of bridging gravitational wave astronomy with particle physics phenomenology, where theoretical assumptions are made explicit and LIGO data is interpreted within well-defined theoretical contexts rather than treated as model-independent observables. The talk is based on 2412.17278, 2510.11913 and work in progress.