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An example of resonance saturation at one loop

O. Cata·S. Peris
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Abstract

We argue that the large-Nc expansion of QCD can be used to treat a Lagrangian of resonances in a perturbative way. As an illustration of this we compute the L_10 coupling of the Chiral Lagrangian by integrating out resonance fields at one loop. Given a Lagrangian and a renormalization scheme, this is how in principle one can answer in a concrete and unambiguous manner questions such as at what scale resonance saturation takes place.

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O. Cata, S. Peris. 2001-12-04. An example of resonance saturation at one loop. https://doi.org/10.1103/physrevd.65.056014

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