Double Chiral Logs

Details Double Chiral Logs Double Chiral Logs

1998-08-26

arxiv.org/abs/hep-ph/9808421v1

Phys.Lett. B441 (1998) 437-446

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 13 pages, 1 figure

Scientific paper

10.1016/S0370-2693(98)01193-9

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.

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