Ratio B(k1,k2,k3)/ [PS(k1)PS(k2) + 2cyc.] , where PS(k) is the fit to the power spectrum from Smith et al. (2003). The red solid line is our model, as in Figs. 5 to 8, the black dotted line is the approximation B3H = Btree, the green dot-dashed line corresponds to no counterterms in the 1-halo and 2-halo contributions (), and the blue dashed line makes both approximations. Upper row: equilateral configurations, at redshifts z = 0.35,1, and 3, as in Fig. 5. Lower row: various isosceles configurations at redshift z = 0.35, as in left panels of Figs. 6 and 7.
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