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arXiv · hep-ph/9808421

Double Chiral Logs

J. Bijnens·G. Colangelo·G. Ecker
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Abstract

We determine the full structure of the leading (double-pole) divergences of O(p^6) in the meson sector of chiral perturbation theory. The field theoretic basis for this calculation is described. We then use an extension of this result to determine the p^6 contributions containing double chiral logarithms (L^2), single logarithms times p^4 constants (L x L_i^r) and products of two p^4 constants (L_i^r x L_j^r) for F_π, F_K/F_π, K_{l3} and K_{e4} form factors. Numerical results are presented for these quantities.

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J. Bijnens, G. Colangelo, G. Ecker. 1998-08-26. Double Chiral Logs. https://doi.org/10.1016/s0370-2693(98)01193-9

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