Chiral extrapolation of SU(3) amplitudes

Abstract

Approximations of chiral SU(3) amplitudes at NNLO are proposed to facilitate the extrapolation of lattice data to the physical meson masses. Inclusion of NNLO terms is essential for investigating convergence properties of chiral SU(3) and for determining low-energy constants in a controllable fashion. The approximations are tested with recent lattice data for the ratio of decay constants F_K/F_pi.

arXiv comment3 pages, 1 figure, Talk presented at "Quark Confinement and the Hadron Spectrum IX", Aug. 30 - Sept. 3, 2010, Madrid, Spain, to appear in the proceedings

References in corpus (7)

• Full nonperturbative QCD simulations with 2+1 flavors of improved staggered quarks
• The Mesonic Chiral Lagrangian of Order $p^6$
• Chiral Perturbation Theory Beyond One Loop
• The ratio FK/Fpi in QCD
• Double Chiral Logs
• Chiral Extrapolation of the Strangeness Changing K pi Form Factor
• Chiral extrapolation and determination of low-energy constants from lattice data

Cited by in corpus (1)

• Review of lattice results concerning low energy particle physics