Summary of the significance of projected intrinsic alignment signal detection (given as xσ) in PAUS W3, with radial alignment component w_g+ on the top row and cross-component (systematics-test) w_g× on the bottom. Significances are computed in the range 0.1 < r_p < 18 h⁻¹ Mpc using full jackknife covariances (Sect. 4.3). Red and blue galaxy correlations are denoted by marker colours. The 3 columns show results for our different schemes of sample colour-splitting. Labels on the x-axis give the remaining specifics of each correlation configuration; ‘U’ (‘W’) denotes unwindowed (windowed) randoms. For ease of comparison, cyan forward-slash hatching indicates setups using zph-randoms (Sect. 3.3), and back-slashes indicate dynamic Π-binning (as opposed to uniform binning; no back-slashes). Grey shading denotes correlations measured on the best 50% of galaxies by photo-z quality (selected on the Qz parameter). We mark confidence levels 2σ and 3σ with horizontal lines. One sees that several correlation configurations yield red galaxy alignment signals reaching ∼2 − 3σ in significance. We make no significant detections of blue galaxy alignments, or systematics-test correlations, in the PAUS W3 data.