
\documentclass[border=5pt,multi=true]{standalone}
\usepackage{standalone}
\usepackage{dcolumn}
\usepackage{booktabs}
\usepackage{float}
\usepackage{ifthen}
\usepackage{multirow}
\usepackage{booktabs}
\usepackage{subcaption}
\usepackage{wrapfig}
\usepackage{bm}
\usepackage{microtype}
\usepackage{lineno}
\usepackage{xspace}
\usepackage{caption}
\usepackage{graphicx}
\usepackage{color}
\usepackage{colortbl}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amsfonts}
\usepackage{upgreek}
\usepackage{hyperxmp}
\usepackage{hyperref}
\usepackage{todonotes}
\usepackage{footmisc}
\usepackage{hypcap}
\usepackage{xspace}
\usepackage{upgreek}
\usepackage{cite}
\usepackage{mciteplus}
\usepackage{longtable}

\begin{document}
    
    
        
    \begin{tabular}{c|c|cc}
        \toprule[1pt]
        \multicolumn{2}{c|}{parameters} & Run 1 & Run 2\\
        \midrule[0.5pt]
        \multirow{2}{*}{$N( B\xspace\xspace^0_ s\xspace\xspace\xspace\!\rightarrow\xspace  D\xspace\xspace_{ s\xspace\xspace1}(2536)^{\mp}\xspace  K\xspace\xspace^\pm\xspace\xspace)$} & photon chain & $154\pm13$ & $493\pm25$\\
        &  $\pi\xspace\xspace^0$ \xspace chain & $335\pm28$ & $1071\pm55$\\\hline
        \multirow{2}{*}{$N( B\xspace\xspace^0\xspace\!\rightarrow\xspace  D\xspace\xspace_{ s\xspace\xspace1}(2536)^{\mp}\xspace  K\xspace\xspace^\pm\xspace\xspace)$} & photon chain & $95\pm8$ & $374\pm15$\\
        &  $\pi\xspace\xspace^0$ \xspace chain & $226\pm20$ & $856\pm35$\\\hline
        \multicolumn{2}{c|}{$k$} & \multicolumn{2}{c}{ $ 1.89\pm0.24$ }\\
        \multicolumn{2}{c|}{$|\phi|$} & \multicolumn{2}{c}{ $ 0.58\pm0.06$ ~rad}\\
        \bottomrule[1pt]
    \end{tabular}
\end{document}
