Calculation of electromagnetic ρπ formfactor from QCD sum rules |
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| Authors: | V L Eletsky Ya I Kogan |
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| Institution: | 1. Institute of Theoretical and Experimental Physics, Moscow, USSR
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| Abstract: | Electromagnetic ρπ formfactor at intermediate momentum transfer, 0.7 GeV2≦Q 2≦3 GeV2, is calculated using QCD sum rules for the vertex function of two vector and one axial vector currents. In this region the results obtained are consistent within 25% accuracy with the vector meson dominance model predictions and can be regarded as its theoretical justification. |
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