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We measure the cross-correlation signature between the Planck CMB lensing mapand the weak lensing observations from both the Red-sequence Cluster LensingSurvey (RCSLenS) and the Canada-France-Hawai Telescope Lensing Survey(CFHTLenS). In addition to a Fourier analysis, we include the firstconfiguration-space detection, based on the estimators $\langle \kappa_{\rmCMB} \kappa_{\rm gal} \rangle$ and $\langle \kappa_{\rm CMB} \gamma_{t}\rangle$. Combining 747.2 deg$^2$ from both surveys, we find a detectionsignificance that exceeds $4.2\sigma$ in both Fourier- and configuration-spaceanalyses. Scaling the predictions by a free parameter $A$, we obtain $A^{\rmPlanck}_{\rm CFHT}= 0.68\pm 0.31 $ and $A^{\rm Planck}_{\rm RCS}= 1.31\pm0.33$. In preparation for the next generation of measurements similar to these,we quantify the impact of different analysis choices on these results. First,since none of these estimators probes the exact same dynamical range, weimprove our detection by combining them. Second, we carry out a detailedinvestigation on the effect of apodization, zero-padding and maskmultiplication, validated on a suite of high-resolution simulations, and findthat the latter produces the largest systematic bias in the cosmologicalinterpretation. Finally, we show that residual contamination from intrinsicalignment and the effect of photometric redshift error are both largelydegenerate with the characteristic signal from massive neutrinos, however thesignature of baryon feedback might be easier to distinguish. The three lensingdatasets are now publicly available.

CFHTLenS and RCSLenS Cross-Correlation with Planck Lensing Detected in Fourier and Configuration Space