Figure 6

Near-side associated peak yields (top row) and widths (third row down) in pp collisions at $\sqrt{s}$ = 13 TeV, compared with predictions by PYTHIA, POWHEG+PYTHIA8, HERWIG, and EPOS 3 event generators with various configurations. Results are presented as a function of the D-meson $\pt$, for $\ptass>$ 0.3 \GeVc, $0.3 < \ptass < 1$ \GeVc, $1 < \ptass < 2$ \GeVc, and $2 < \ptass < 3$ \GeVc (from left to right). The ratios of model predictions to data measurements for yield (width) values are shown in the second (fourth) row down. In these rows, model statistical and systematic uncertainties are shown as vertical error bars and boxes, respectively, while data total uncertainties are displayed as a solid band.