| Fractional jet $\pt$ resolutions, from Equation~\ref{eq:dijet_formula}, measured in events with $60 \le\bar{p}_\T <80$~GeV and with third jet with $\pt$ less than $p_{\T,3}^{\rm{EM-scale}}$, as a function of $p_{\T,3}^{\rm{EM-scale}}$, for data (squares) and Monte Carlo simulation (circles). The solid lines correspond to linear fits while the dashed lines show the extrapolations to $p_{\T,3}^{\rm{EM-scale}}= 0$. The lower panel shows the ratio between data and MC simulation. The errors shown are only statistical. |