Fig. 2.

Fractional jet p _T resolutions, from Eq. (2), measured in events with \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$60 \le\bar{p}_{\mathrm{T}} <80~\mbox{GeV}$\end{document} and with third jet with p _T less than \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$p_{{\mathrm{T}},3}^{\text{EM-scale}}$\end{document}, as a function of \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$p_{{\mathrm{T}},3}^{\text{EM-scale}}$\end{document}, for data (squares) and Monte Carlo simulation (circles). The solid lines correspond to linear fits while the dashed lines show the extrapolations to \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$p_{{\mathrm{T}},3}^{\text{EM-scale}}= 0$\end{document}. The lower panel shows the ratio between data and MC simulation. The errors shown are only statistical