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We present a new reaction, complementary to the $J/\psi\rightarrow \etaK^{*0}\bar{K}^{*0}$ from which an $h_1$ resonance with mass around $1830$ MeVwas reported from a BESIII experiment. The new reaction is $\eta_c\rightarrow\phi K^*\bar{K}^*$, or $\eta_c(2S)\rightarrow \phi K^*\bar{K}^*$. Using theinformation from the analysis of $J/\psi\rightarrow \eta K^{*0}\bar{K}^{*0}$,we find that the $K^*\bar{K}^*$ invariant mass distribution for those two$\eta_c$ decays exhibits a clear peak around $1830$ MeV perfectlydistinguishable from what one obtains with pure phase space. We suggest theimplementation of these reactions to assert the existence of this elusiveresonance which, by its nature as a vector-vector molecule with $0^-(1^{+-})$quantum numbers, only couples to the $K^*\bar{K}^*$ channel.

Test of the $h_1(1830)$ made of $K^{*}\bar{K}^*$ with the $\eta_c\rightarrow \phi K^{*}\bar{K}^{*}$ decay

Test of the $h_1(1830)$ made of $K^{}\bar{K}^$ with the $\eta_c\rightarrow \phi K^{}\bar{K}^{}$ decay