The power per logarithmic interval of k, as in Fig. 9, at redshifts z = 0.35, 1, and 3. We plot the curves obtained using 1-loop “standard perturbation theory” (red dashed lines for the full nonlinear power Δ², and lower red dotted lines for the associated 2-halo contribution) or the “decaying response” function from Crocce & Scoccimarro (2006a) (blue solid lines for the full nonlinear power Δ², and lower blue dotted lines for the associated 2-halo contribution). Both the full and 2-halo power spectra obtained with “SPT” are larger than their “DR” counterparts.