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The Spectra of $p\barΛ$ and $p\barΣ$ Hexaquark States

Motivated by the observation of the $J^P = 1^+$ resonance $X(2085)$ in the $p\barΛ$ system by the BESIII collaboration, we studied the molecular states of hexaquarks $p\barΛ$ and $p\barΣ$ with baryon-antibaryon structures within the framework of the QCD sum rules. Non-perturbative contributions up to dimension 13 were considered in our analysis. The results indicate the existence of six possible molecular states $p\barΛ$ and $p\barΣ$, with quantum numbers $J^{P}=0^{-}, 0^{+}, 1^{-}$. Consequently, the current sum rule results do not support the interpretation of $X(2085)$ as a $p\barΛ$ or $p\barΣ$ molecular state. On the other hand, we find that the masses of the proposed $p\barΛ$ and $p\barΣ$ structures with $J^{P} = 1^{-}$ are in the vicinity of observed $X(2075)$, which implies that the nature of this state needs more invistigations. Moreover, the possible decay modes of the concerned hexaquark states are analyzed.