Possible Molecular Explanation for the Resonance $Y(4500)$

The BESIII collaboration has discovered a new state with hidden charm-strange. Its mass is intriguingly close to the $D_s\bar{D}_{s1}$ threshold and does not have the properties of the charmonium states. Working with the QCD sum rules (QCDSR) approach, we test if the charmonium-like structure $Y (4500)$, detected in the invariant mass spectrum $K^+ K^-J/\psi$ may be interpreted as an exotic $D_s\bar{D}_{s1}$ molecular structure with $J^{PC}=1^{--}$. Considering the contributions of QCD condensates up to operator dimension ten, we estimate the mass and decay constant of $Y(4500)$ resonance. We get $m_Y = (4488.35 \pm 11.54)$ MeV in excellent agreement with the meson mass reported by BESIII and $f_Y=(4.04 \pm 0.36)\times 10^{-3}$$\mathrm{GeV^4}$. Our findings indicate that a pseudoscalar-axialvector molecule current can well describe this state.