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\documentclass[aps,pra,reprint,groupedaddress]{revtex4-1}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{amsmath}
\usepackage[caption=false]{subfig}
\usepackage{subfig}
\usepackage{amssymb}
\usepackage{booktabs}
Code: Select all
\begin{table}
\centering
\begin{tabular}{ccc}
\toprule
\multicolumn{3}{r}{$k_{20}+k_{21}$($\times$10$^{-9}$cm$^{3}$s$^{-1}$)} \\
\cmidrule{2-3}Neutral & Default & New \\
Kr &4.02 $\pm$ 0.46~ & 4.17 $\pm$ 0.49 \\
Xe & 6.11 $\pm$ 0.72& 6.39 $\pm$ 0.76\\
\bottomrule
\end{tabular}
\caption{\label{comparison}}
\end{table}
k20 + k21(×10−9cm3s−1)
Neutral Default New
Kr 4.02 ± 0.46 4.17 ± 0.49
Xe 6.11 ± 0.72 6.39 ± 0.76