Speaker
Description
In the age of precision cosmology, mapping the large-scale structure of the universe has the potential to reveal pieces of the puzzle that is the nature of dark matter. Most deviations from standard cold DM (CDM) models are confined to cosmologically small scales to not violate existing constraints. Thus, there is a fundamental need to have accurate models of the non-linear formation of structures in beyond-CDM models. Therefore, we present a framework in the spirit of the effective field theory of large-scale structure (EFTofLSS) describing observations of the Lyman-α forest and test its applicability to beyond-CDM models of DM. We focus on mixed Hot/Warm + Cold DM models, and present a systematic study of the statistical power of this effective approach, with the goal of quantifying its predictability regarding beyond-CDM models. Moreover, we discuss its applicability to observational data on the largest Lyman-α scales as measured by BOSS and DESI, and the possible challenges this entails.