Chiral extrapolation and determination of low-energy constants from lattice data
arXiv:1004.3422 · doi:10.1016/j.physletb.2010.07.037
Abstract
We propose analytic approximations of chiral SU(3) amplitudes for the extrapolation of lattice data to the physical meson masses. The method allows the determination of NNLO low-energy constants in a controllable fashion. We test the approach with recent lattice data for the ratio F_K/F_pi of meson decay constants.
10 pages, 1 figure, matches version published in PLB: title enlarged, comments added, results unchanged