A rational approximation to <VV-AA> and its O(p⁶) low-energy constant
classification
✦ hep-ph
hep-lat
keywords
constantlow-energyrationalappearsapproximantsapproximationchiralestimate
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Using a sequence of rational approximants and the large-Nc limit of QCD, we estimate the value of the low-energy constant C_87 which appears in the Lagrangian of Chiral Perturbation Theory at O(p^6).
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