Projected correlation functions w_g ×  and w_g +  for large line-of-sight separations as a function of comoving transverse separation r_p. Top panel: shown is w_g ×  for the re-defined SDSS Main L4 (red points) and L3 (black points) samples. Moreover w_g +  integrated along the line of sight for 100 <  |Π| / [h^-1Mpc]  < 150 is plotted as grey points for L3 and orange points for L4. Note that the orange, black, and red points have been slightly offset horizontally for clarity. Centre panel: shown is w_g ×  for the full MegaZ-LRG sample in grey, for the low-redshift sample with z < 0.529 in black, and for the high-redshift sample with z > 0.529 in red. In addition we plot the correlation function w_g +  for the full MegaZ-LRG sample, integrated along the line of sight for 270 <  |Π| / [h^-1Mpc]  < 315, as green points. Note that the black, red, and green points have been slightly offset horizontally for clarity. Bottom panel: same as in centre panel, but for the MegaZ-LRG sample with the colour cut imposed. Note that we did not repeat the computation of w_g +  for large  |Π| . Error bars at different r_p are correlated. Note that all correlation functions have been rescaled by  [r_p/(1   h^-1Mpc)] ^0.6 for easier inspection. All signals are consistent with zero.