Analytic Approximations for the Extrapolation of Lattice Data
Pere Masjuan
TL;DR
This paper develops analytic methods to extrapolate lattice QCD data to physical masses and determine low-energy constants, validated by lattice data for F_K/F_pi.
Contribution
It introduces new analytic approximations for chiral SU(3) amplitudes to improve lattice data extrapolation and low-energy constant extraction.
Findings
Validated approximation with lattice F_K/F_pi data
Provides a tool for more accurate chiral extrapolations
Enhances determination of low-energy constants
Abstract
We present analytic approximations of chiral SU(3) amplitudes for the extrapolation of lattice data to the physical masses and the determination of Next-to-Next-to-Leading-Order low-energy constants. Lattice data for the ratio F_K/F_pi is used to test the approximation proposed.
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