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arXiv · hep-ph/0404004

Green Function in the Resonance Region

V. Cirigliano·G. Ecker·M. Eidemuller·A. Pich·J. Portoles
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Abstract

We analyse the three-point function of vector, axial-vector and pseudoscalar currents. In the spirit of large N_C, a resonance dominated Green function is confronted with the leading high-energy behaviour from the operator product expansion. The matching is shown to be fully compatible with a chiral resonance Lagrangian and it allows to determine some of the chiral low-energy constants of O(p^6).

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V. Cirigliano, G. Ecker, M. Eidemuller, A. Pich, J. Portoles. 2004-07-23. Green Function in the Resonance Region. https://doi.org/10.1016/j.physletb.2004.06.082

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