Abstract
In this paper we obtain the mass and decay constant of the ρ meson in QCD sum rules with a self-consistent equation, in which the continuum threshold s0 is replaced by continuum gap, Δ, that is a common parameter to a great number of the hadrons. We choose Δ = 0.5 GeV and we observe the convergence of the self-consistent equation for 100 loops and we get a good agreement with the experimental values for the decay constant and ρ mass.
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