Abstract
Using the analysis of ChPT to two loops, we perform an error analysis of the threshold and low-energy parameters, based on the uncertainties for the one-loop low-energy parameters and the resonance saturation mechanism. Different sets of one-loop low-energy constants have been considered. Thus, the predictive power of the effective field theory, is quantified on the basis of the present experimental uncertainties.
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Communicated by W. Weise
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Nieves, J., Ruiz Arriola, E. Error estimates for ππ scattering threshold parameters in Chiral Perturbation Theory to two loops. Eur. Phys. J. A 8, 377–384 (2000). https://doi.org/10.1007/s10050-000-4511-0
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DOI: https://doi.org/10.1007/s10050-000-4511-0