Accuracy of our model and our numerical simulations at redshifts z = 0.35, 1, and 3 for the reduced bispectrum on equilateral configurations. We plot our “direct” model (red solid line) and its geometrical modifications “tang.” (green dot-dashed line) and “flat” (blue dashed line), shown in Fig. 13. The black dashed line shows the statistical and shot-noise errors of the simulations. The vertical arrow in the upper right part shows the wavenumber beyond which the simulation shot noise is greater than 10%.
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