
\documentclass[border=5pt,multi=true]{standalone}
\usepackage{standalone}
\usepackage{ifthen}
\usepackage{microtype}
\usepackage{lineno}
\usepackage{xspace}
\usepackage{caption}
\usepackage{graphicx}
\usepackage{color}
\usepackage{colortbl}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amsfonts}
\usepackage{upgreek}
\usepackage{hyperref}
\usepackage{hypcap}
\usepackage{xspace}
\usepackage{upgreek}
\usepackage{cite}
\usepackage{mciteplus}
\usepackage{longtable}

\begin{document}
\small
\begin{tabular}{l|c}
Source &  Uncertainty [$\mathrm{ \,fs}\xspace$] \\
\hline
$A_{\textrm{sel}}$ &  10.0 \\
$A_\beta$ (stat)  & 2.0 \\
$A_\beta$ (syst)  & 0.1 \\
$A_{\textrm{trig}}$ (stat) & 0.6 \\
$A_{\textrm{trig}}$ (syst) & 0.6 \\
MVA &  1.7 \\
Time resolution &  -- \\
$f_r$  & 1.2 \\
$ B\xspace\xspace^0_ s\xspace\xspace\xspace -  B\xspace\xspace^0\xspace$ mass difference &  -- \\
$ B\xspace\xspace^0\xspace$ lifetime & 0.2 \\
Releasing $\tau_{\textrm{back}}$ & 4.0 \\
Varying $\tau_{\textrm{partial}}$ &  -- \\
Mass model & -- \\
Momentum scale                 &  --  \\
$z$-scale         & 0.3 \\ \hline
Total & 11.1 \\
\end{tabular}
\end{document}
