Vector and Scalar Mesons' Mixing from QCD Sum Rules

We study the $\bar qq$-hybrid mixing for the vector mesons and the $\bar qq$-glueball mixing for the scalar mesons in Monte-Carlo based QCD sum rules. By calculating the two-point correlation function of a $\bar q\gamma_\mu q$ ($\bar q q$) current and another hybrid (glueball) current we are able to estimate the mass and the decay constants of the corresponding mixed `physical state' that couples to both currents. However our results do not support strong mixing between both the $1^{--}$ and the $0^{++}$ states.