Fig. 15.

Comparison of data and MC predictions for charged particle scalar $\sum p_{\mathrm{T}}$ density average values, $⟨\sum p_{\mathrm{T}}/\mathit{\delta }\mathit{\eta }\mathit{\delta }\mathit{\varphi }⟩$, as a function of $Z$-boson transverse momentum, $p_{\mathrm{T}}^{\mathrm{Z}}$, in the trans-max (a) and trans-min (b) regions. The shaded bands represent the combined statistical and systematic uncertainties, while the error bars show the statistical uncertainties