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The Hadronic Cross-Section in the Resonance Energy Region

J. Portoles, P. D. Ruiz-Femenia

hep-pharXiv:hep-ph/0311251

Abstract

We study the hadronic vacuum polarization in the resonance energy region, using the framework given by the Resonance Effective Theory of QCD. We consider the incorporation of vector-pseudoscalar meson loops that give, inclusively, three and four pseudoscalar meson cuts. After resummation we achieve a QCD-based inclusive parameterization of the correlator, hence of the hadronic cross-section in the energy region populated by resonances.

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