Figure 2

The average transverse momentum $\langle p_{T} \rangle$ of $\textrm{e}^{+} \textrm{e}^{-}$ pairs, measured forthe $p_{T}$ range 0 - 10 GeV$/c$, as a function of the invariant mass $m_{ee}$ in centrality selected Pb-Pb collisions at $\sqrt{s_{NN}}$ =2.76 TeV. The shown uncertainties are statistical only. The background $\langle p_{T} \rangle$ distributions and the total fit results are also shown superimposed to the data points.