Dark Energy Survey Year 3 Results: Multi-Probe Modeling Strategy and
Validation
Dark Energy Survey Year 3 Results: Multi-Probe Modeling Strategy and
Validation
This paper details the modeling pipeline and validates the baseline analysis choices of the DES Year 3 joint analysis of galaxy clustering and weak lensing (a so-called "3$\times$2pt" analysis). These analysis choices include the specific combination of cosmological probes, priors on cosmological and systematics parameters, model parameterizations for systematic effects …