Comoving matter density–gravitational convergence angular cross-spectrum in a single shell at z = 0.7 (red) and z = 1.8 (pink) in ΛCDM cosmology assuming the Born approximation. The cross-spectrum between two shells at z = 0.7 (density) and z = 1.8 (convergence) is shown in green, and the non-trivial cross-spectrum between two shells at z = 0.7 (convergence) and z = 1.8 (density) is shown in black. Left: spectrum from the RAYGAL 2500 deg² light cone (diamonds with error bars) and the spectrum from CLASS (dashed line). Right: relative deviation from the CLASS prediction. The cross-spectrum for a single shell at z = 1.8 being very noisy, the number of bins has been reduced and the large error bars have been omitted (for readability). The non-trivial cross-spectrum is nearly zero in real space, so the data points are outside the plot. Overall, the measured power spectra are in agreement with CLASS predictions within the error bars, except at large scales (small ℓ) due to the finite area of the light cone.