An example of resonance saturation at one loop

Details An example of resonance saturation at one loop An example of resonance saturation at one loop

2001-07-06

arxiv.org/abs/hep-ph/0107062v2

Phys.Rev.D65:056014,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 5 figures. Enlarged discussion, results unchanged. To be published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.65.056014

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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