A comparison of effective field theory models of redshift space galaxy power spectra for DESI 2024 and future surveys

Understand

In preparation for the next generation of galaxy redshift surveys, and in particular the year-one data release from the Dark Energy Spectroscopic Instrument (DESI), we investigate the consistency of a variety of effective field theory models that describe the galaxy-galaxy power spectra in redshift space into the quasi-linear regime using 1-loop perturbation theory.

• These models are employed in the pipelines \texttt{velocileptors}, \texttt{PyBird}, and \texttt{Folps$\nu$}.
• While these models have been validated independently, a detailed comparison with consistent choices has not been attempted.
• After briefly discussing the theoretical differences between the models we describe how to provide a more apples-to-apples comparison between them.