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

\begin{document}
 \begin{tabularx}{0.47\textwidth}{lr} 
Source & \hspace*{-5.2mm} Systematic uncertainty [\%]\rule{0pt}{2.6ex} \\ \hline
 $\cal B$ \xspace( $ B\xspace\xspace^0\xspace \to J/\psi K^{*0}$ \xspace)\rule{0pt}{2.6ex} &  10.2 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\
$S$-wave correction & 8.3 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\
$f_d/f_s$ & 7.8 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\ 
Data-simulation differences & 5.2 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \  \\ 
Trigger efficiency&   4.4 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \  \\ 
PID selection efficiency & 4.1 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\
Simulation sample size & 1.3 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\ 
 $ B\xspace\xspace^0\xspace \to J/\psi K^{*0}$ \xspace yield & 0.6 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\ \hline
Combined  $ B\xspace\xspace^0_\mathrm{s}\xspace\xspace$ \xspace uncertainty\rule{0pt}{2.6ex}& 17.2 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \  \\ 
Combined  $ B\xspace\xspace^0$ \xspace uncertainty\rule{0pt}{2.6ex}& 15.4  \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\ 
 \end{tabularx}
\end{document}
