Abstract
We discuss properties of 1 - + exotic mesons within the framework of the QCD field-theoretic approach. We estimate the mass of the lowest-lying 1 -+ exotic meson using renormalization-improved QCD sum rules, and find that the mass lies around 1.26 ± 0.15 GeV, in good agreement with the π 1 (1400) data. This state should be expected in QCD. We find that the mass for the lowest-lying strange 1 -+ meson is 1.31 ± 0.19 GeV. Our result hints that the K*(1410) may be the lowest-lying 1 -+ nonet state.
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