\begin{document}$S U(2)$\end{document} glueballs as dark matter candidates using lattice simulations. We employ both naive and improved \begin{document}$S U(2)$\end{document} gauge actions in \begin{document}$ 3+1 $\end{document} dimensions with several β values, and we adopt both the traditional Monte Carlo method and flow-based model based on machine learning techniques to generate lattice configurations. The mass of a dark scalar glueball with \begin{document}$ J^{PC}=0^{++} $\end{document} and the Nambu-Bethe-Salpeter wave function are calculated. Using a coupling constant of \begin{document}$ \beta=2.2 $\end{document} as an illustration, we compare the dark glueball mass calculated from the configurations generated from the two methods. While consistent results can be achieved, the two methods demonstrate distinct advantages. Using the Runge-Kutta method, we extract the glueball interaction potential and two-body scattering cross section. From the observational constraints, we obtain the lower bound of the mass of scalar glueballs as candidates of dark matter."> A comparative lattice analysis of <i>SU</i>(2) dark glueballs -
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