2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/182700The resonance X(1810) discovered in $J/ψ\to γωϕ$ by BESII is considered as a candidate of $0^{++}$ $Q^2\bar{Q}^2$ state. This model predicts that $X\toωϕ, K^* K^*$ are the two dominant decay channels and $X\to KK, ηη, ηη'$ are suppressed. The cross sections of $γγ\to X\to ωϕ, K^* K^*$ are estimated.13 pagesHigh Energy Physics - Phenomenologytext