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arXiv · 1009.6012

One loop predictions for the pion VFF in Resonance Chiral Theory

J. J. Sanz-Cillero
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Abstract

A calculation for the one-loop pion vector form-factor in Resonance Chiral Theory is provided in this talk. The amplitude is computed up to next-to-leading order in 1/Nc and, by means of high-energy constraints, we are able to produce a prediction for the corresponding O(p4) Chiral Perturbation Theory low energy constant L9(mu)=(7.6+- 0.6) 10^{-3} at the scale mu=770 MeV.

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J. J. Sanz-Cillero. 2010-09-29. One loop predictions for the pion VFF in Resonance Chiral Theory. https://doi.org/10.1063/1.3536542

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