\begin{document}$ X(6900) $\end{document} meson in the \begin{document}$ {\mathsf{ LHCb}}$\end{document} experiment, we investigate the inclusive production rate of the \begin{document}$ C $\end{document}-odd fully-charmed tetraquarks associated with light hadrons at the \begin{document}$ B $\end{document} factory within the nonrelativistic QCD (NRQCD) factorization framework. The short-distance coefficient is computed at the lowest order of velocity and \begin{document}$ \alpha_s $\end{document}. Employing two different kinds of phenomenological models to approximately estimate the long-distance NRQCD matrix element, we predict the rate for the inclusive production of the \begin{document}$ 1^{+-} $\end{document} \begin{document}$ T_{4c} $\end{document} state and discuss the observation prospect of the \begin{document}$ {{\mathsf{Belle}}\; {\mathsf{2}}} $\end{document} experiment."> Inclusive production of fully-charmed 1<sup>+−</sup> tetraquark at <i>B</i> factory -
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