
\documentclass[border=5pt,multi=true]{standalone}
\usepackage{standalone}
\usepackage{ifthen}
\usepackage{amssymb}
\usepackage{amsfonts}
\usepackage{upgreek}
\usepackage{xspace}
\usepackage{color}
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{bm}
\usepackage{ctable}
\usepackage{placeins}
\usepackage{grffile}
\usepackage{subfig}
\usepackage{mathrsfs}
\usepackage{multirow}
\usepackage{relsize}
\usepackage{afterpage}
\usepackage{lmodern}
\usepackage{mciteplus}
\usepackage{hyperref}
\usepackage{hypcap}
\usepackage{svg}
\usepackage{svg}

\begin{document}
  
    \small
    \begin{tabular}{ll|rrrrr}
      \toprule
      \multicolumn{2}{c|}{\multirow{2}{*}{Stream}}
      & \multicolumn{5}{c}{$\Delta\sigma_{pp \to  Z\xspace \to \tau\tau\xspace}~[\%]$} \\
      & &  $\tau_\mu\tau_\mu$ \xspace &  $\tau_\mu\tau_e$ \xspace &  $\tau_e\tau_\mu$ \xspace &  $\tau_\mu\tau_ h\xspace$ \xspace &  $\tau_e\tau_ h\xspace$ \xspace \\
      \midrule
      \multicolumn{2}{l|}{ $\mathcal{A}$ \xspace}
      & $1.48$  & $1.61$ & $1.32$  & $1.10$ & $1.11$  \\
      \midrule
      \multicolumn{2}{l|}{ $\mathcal{B}$ \xspace}
      & $0.46$  & $0.32$ & $0.32$  & $0.32$ & $0.33$  \\
      \midrule
      \multicolumn{1}{l|}{\multirow{5}{*}{$N_\mathrm{bkg}\xspace$}}
      & $N_\mathrm{QCD}\xspace$
      & $4.33$  & $0.80$ & $3.08$  & $0.40$ & $0.92$  \\
      \multicolumn{1}{l|}{} & $N_\mathrm{EWK}\xspace$
      & $4.22$  & $1.54$ & $1.52$  & $0.40$ & $0.72$  \\
      \multicolumn{1}{l|}{} & $N_ {t\bar{t}}\xspace$
      & $0.02$  & $0.08$ & $0.12$  & $0.00$ & $0.58$  \\
      \multicolumn{1}{l|}{} & $N_ {WW}\xspace$
      & $0.02$  & $0.14$ & $0.13$  & $0.09$ & $0.08$  \\
      \multicolumn{1}{l|}{} & $N_{ Z\xspace}$
      & $8.00$  & $-$    &  $-$    & $0.22$ & $0.23$  \\
      \midrule
      \multicolumn{2}{l|}{Total $N_\mathrm{bkg}\xspace$}
      & $10.03$ & $1.75$ & $3.44$  & $0.61$ & $1.32$  \\
      \midrule
      \multicolumn{1}{l|}{\multirow{6}{*}{ $ {\varepsilon_{\mathrm{rec}\xspace}}$ \xspace}}
      &  $ {\varepsilon_{\mathrm{GEC}\xspace}}$ \xspace
      & $0.10$  & $0.10$ & $0.10$  & $0.10$ & $0.10$  \\
      \multicolumn{1}{l|}{} &  $ {\varepsilon_{\mathrm{trg}\xspace}}$ \xspace
      & $0.88$  & $0.71$ & $2.29$  & $0.72$ & $4.30$  \\
      \multicolumn{1}{l|}{} & $ {\varepsilon_{\mathrm{trk}\xspace}}\xspace^{(1)}$
      & $0.71$  & $0.74$ & $3.67$  & $0.79$ & $3.67$  \\
      \multicolumn{1}{l|}{} & $ {\varepsilon_{\mathrm{trk}\xspace}}\xspace^{(2)}$
      & $0.34$  & $3.67$ & $0.61$  & $1.76$ & $1.68$  \\
      \multicolumn{1}{l|}{} & $ {\varepsilon_{\mathrm{id}\xspace}}\xspace^{(1)}$
      & $0.38$  & $0.28$ & $1.72$  & $0.29$ & $1.73$  \\
      \multicolumn{1}{l|}{} & $ {\varepsilon_{\mathrm{id}\xspace}}\xspace^{(2)}$
      & $0.78$  & $0.18$ & $0.56$  & $0.03$ & $0.09$  \\
      \midrule
      \multicolumn{2}{l|}{Total  $ {\varepsilon_{\mathrm{rec}\xspace}}$ \xspace}
      & $1.47$  & $4.21$ & $4.73$  & $2.08$ & $6.15$  \\
      \midrule
      \multicolumn{1}{l|}{\multirow{5}{*}{ $ {\varepsilon_{\mathrm{sel}\xspace}}$ \xspace}} 
      &  $ {\varepsilon_{\mathrm{kin}\xspace}}$ \xspace
      & $-$     & $1.04$ & $2.89$  & $-$    & $1.91$  \\
      \multicolumn{1}{l|}{} &  $ {\varepsilon_{ {I_{p_\mathrm{T}}}\xspace}}$ \xspace
      & $1.79$  & $1.91$ & $3.19$  & $1.65$ & $2.75$  \\
      \multicolumn{1}{l|}{} &  $ {\varepsilon_{ {|\Delta \Phi|}\xspace}}$ \xspace
      & $1.08$  & $1.03$ & $1.86$  & $0.60$ & $0.97$  \\
      \multicolumn{1}{l|}{} &  $ {\varepsilon_{ {\mathrm{IPS}}\xspace}}$ \xspace
      & $2.70$  & $-$    &  $-$    & $1.92$ & $2.85$  \\
      \multicolumn{1}{l|}{} &  $ {\varepsilon_{ {A_{p_\mathrm{T}}}\xspace}}$ \xspace
      & $2.03$  & $-$    &  $-$    & $-$    & $-$     \\
      \midrule
      \multicolumn{2}{l|}{Total  $ {\varepsilon_{\mathrm{sel}\xspace}}$ \xspace}
      & $3.97$  & $2.41$ & $4.69$  & $2.60$ & $4.50$  \\
      \midrule
      \multicolumn{2}{l|}{Total systematic}
      & $11.13$ & $5.41$ & $7.56$  & $3.88$ & $7.88$  \\
      \bottomrule
    \end{tabular}
  
  
\end{document}
