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We use the method of double pole QCD sum rule which is basically a fit withtwo exponentials of the correlation function, where we can extract the massesand decay constants of mesons as a function of the Borel mass. We apply thismethod to study the mesons: $\rho(1S,2S)$, $\psi(1S,2S)$, $\Upsilon(1S,2S)$ and$\psi_t(1S,2S)$. We also present predictions for the toponiuns masses$\psi_t(1S,2S)$ of m(1S)=357 GeV and m(2S)=374 GeV.

The $\rho(1S,2S)$, $\psi(1S,2S)$, $\Upsilon(1S,2S)$ and $\psi_t(1S,2S)$ mesons in a double pole QCD Sum Rule