Comparison of the azimuthal-correlation distribution with model predictions after baseline subtraction for $4 < \pt^{\rm e} < 12$ \GeVc  in different $\pt^{\rm{assoc}}$ ranges in pp collisions at $\sqrt{s} = 5.02$ TeV. The statistical (uncorrelated systematic) uncertainties are shown as vertical lines (empty boxes). The uncertainties of the baseline are shown as solid boxes near $\dph \sim 0$ rad.