\begin{document}$ \Lambda_c\Lambda_c $\end{document} scattering with \begin{document}$ I(J^P) = 0(0^+) $\end{document}. The calculation is performed on two \begin{document}$ N_f = 2+1 $\end{document} Wilson-Clover ensembles with pion mass \begin{document}$ m_\pi \sim 303 $\end{document} MeV and lattice spacing \begin{document}$ a = 0.07746 $\end{document} fm. Lüscher's finite volume method is utilized to extract the scattering parameters from the finite-volume spectrum. The coupled channel \begin{document}$ \Xi_{cc}N $\end{document} is ignored in the scattering analysis based on the observation that the energy levels computed from the \begin{document}$ \Lambda_c\Lambda_c $\end{document} and \begin{document}$ \Xi_{cc}N $\end{document} operators do not mix. The \begin{document}$ \Sigma_c\Sigma_c $\end{document} channel is not included either since the energy range explored in this study is well below its threshold. Our results indicate that the interaction in the \begin{document}$ \Lambda_c\Lambda_c $\end{document} single channel is repulsive, and the scattering length is determined to be \begin{document}$ a_0 = -0.21(4)(8) $\end{document} fm, where the first error is statistical and the second is systematic."> Lattice QCD study of Λ<sub><i>c</i></sub>Λ<sub><i>c</i></sub> scattering -
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