\pt-differential \psis-to-\jpsi production cross section ratio at midrapidity in \pp collisions at \thirteen compared with a measurement at forward rapidity in \pp collisions at the same collision energy~ (left), and compared with the model calculations~ (right) The error bars indicate the statistical uncertainties, and the boxes indicate the systematic uncertainties. The data points are plotted at the effective \pt values evaluated according to the Lafferty-Wyatt prescription~ The widths of the bands reflect the theoretical uncertainties.