(\km p \opl\ \kp \ap) correlation functions obtained (from left to right) from pp collisions at \s = 5 TeV, 7 TeV, 13 TeV. The fourth panel shows the combined results at the three colliding energies, The number of pairs in each data sample as been used as weight. The inset shows the correlation function evaluated for pp collisions at \s = 5 TeV in a wider \kstar interval. The measurement is presented by the black markers, the vertical lines and the boxes represent the statistical and systematic uncertainties respectively. Bottom panels represent comparison with models as described in the text.