Chiral extrapolation and determination of low-energy constants from lattice data

Details Chiral extrapolation and determination of low-energy constants from lattice data Chiral extrapolation and determination of low-energy constants from lattice data

2010-04-20

arxiv.org/abs/1004.3422v3

Phys.Lett.B692:184-188,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 1 figure, matches version published in PLB: title enlarged, comments added, results unchanged

Scientific paper

10.1016/j.physletb.2010.07.037

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.

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