Azimuthal-correlation distributions after baseline subtraction for two $p_{T}^{\rm e}$ intervals, $4 < p_{\rm T}^{\rm e} < 7$ GeV/$c$ and $7 < p_{\rm T}^{\rm e} < 16$ GeV/$c$, and for different associated \pt 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.