\begin{document}$ Z^{\prime} $\end{document} particle through \begin{document}$ J/\psi $\end{document} decays by identifying its existence through parity-violating phenomena in the isospin-violating final states of \begin{document}$ \Lambda\overline{\Sigma}^{0} $\end{document} and the corresponding charge conjugated states of \begin{document}$ \overline{\Lambda}\Sigma^{0} $\end{document}. Our investigation centered on a generation-independent and leptophobic \begin{document}$ Z^{\prime} $\end{document} with mass below 10 GeV. Given the present experimental conditions at Beijing Spectrometer III (BESIII) and the anticipated opportunities at the Super Tau Charm Factory (STCF), we conducted Monte-Carlo simulations to predict possible events at both facilities. Notably, we foresee a substantial enhancement in the precision of the lower limit estimation of \begin{document}$ \alpha_{\text{NP}} $\end{document} as well as a reduction in statistical uncertainty with upcoming STCF experiments. Furthermore, it is essential to highlight that a null result in the measurement of \begin{document}$ \alpha_{\text{NP}} $\end{document} would impose stringent constraints, requiring the \begin{document}$ Z^{\prime}-q-q $\end{document} couplings to be in the order of \begin{document}$ 10^{-2} $\end{document}."> New signature of low mass <i>Z</i>′ in <i>J</i>/<i>ψ</i> decays -
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