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We discuss a calculation of large-Nc masses of light scalar mesons from theQCD sum rules. Two methods based on the use of linear radial Regge trajectoriesare presented. We put a special emphasis on the appearance of pole near 0.5 GeVin the scalar isoscalar channel which emerges in both methods and presumablycorresponds to the scalar sigma-meson.

The large-Nc masses of light scalar mesons from QCD sum rules for linear radial spectrum