Azimuthal-correlation distributions after baseline subtraction for $4 < p_{\rm T}^{\rm e} < 12$ GeV/$c$ in different $p_{\rm T}^{\rm{assoc}}$ ranges compared with predictions from PYTHIA8 Monash and EPOS3 in pp collisions at $\sqrt{s} =$ 5.02 TeV. The statistical (systematic) uncertainties are shown as vertical lines (empty boxes). The uncertainties of the baseline are shown as solid boxes at $\Delta \varphi \sim 0$ rad.