The effective field theory likelihood for the density field of biased tracers allows for cosmology inference from the clustering of galaxies that consistently uses all available information at a given order in perturbation theory. This paper presents results and implementation details on the real-space (as opposed to Fourier-space) formulation of the likelihood, which allows for the incorporation of survey window functions. The implementation further uses a Lagrangian forward model for biased tracers which automatically accounts for all relevant contributions up to any desired order. Unbiased inference of σ₈ is demonstrated at the 2% level for cutoff values Ł ≲ 0.14 h Mpc^-1 for halo samples over a range of masses and redshifts. The inferred value shows the expected convergence to the ground truth in the low-cutoff limit. Apart from the possibility of including observational effects, this represents further substantial improvement over previous results based on the EFT likelihood.

有偏示踪剂的密度场的有效场论可能性允许从星系的聚类中进行宇宙学推断，这些星系在扰动理论中以给定的顺序一致地使用所有可用信息。本文介绍了真实空间（相对于傅立叶空间）似然公式的结果和实现细节，它允许结合调查窗口函数。该实现进一步使用拉格朗日前向模型用于偏置跟踪器，该模型自动考虑所有相关贡献​​，直至达到任何所需的顺序。对于临界值 Ł ≲ 0.14 h Mpc ^-1在 2% 的水平上证明了 σ _{8 的}无偏推断用于一系列质量和红移范围内的光晕样本。推断值显示了在下限中与真实情况的预期收敛。除了包括观察效应的可能性之外，这代表了基于 EFT 可能性的先前结果的进一步实质性改进。