Double Chiral Logs
High Energy Physics - Phenomenology
2009-10-31 v1
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_\pi, F_K/F_\pi, K_{l3} and K_{e4} form factors. Numerical results are presented for these quantities.
Cite
@article{arxiv.hep-ph/9808421,
title = {Double Chiral Logs},
author = {J. Bijnens and G. Colangelo and G. Ecker},
journal= {arXiv preprint arXiv:hep-ph/9808421},
year = {2009}
}
Comments
Latex, 13 pages, 1 figure