Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 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 and
related approximations, and angular scales where the model assumptions are
validated. We run a large number of simulated likelihood analyses using
synthetic data vectors to test the robustness of our baseline analysis. We
demonstrate that the DES Year 3 modeling pipeline, including the calibrated
scale cuts, is sufficiently accurate relative to the constraining power of the
DES Year 3 analyses. Our systematics mitigation strategy accounts for
astrophysical systematics, such as galaxy bias, intrinsic alignments, source
and lens magnification, baryonic effects, and source clustering, as well as for
uncertainties in modeling the matter power spectrum, reduced shear, and
estimator effects. We further demonstrate excellent agreement between two
independently-developed modeling pipelines, and thus rule out any residual
uncertainties due to the numerical implementation.

28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
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The categories of this paper are: chem-ph
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
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The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th