Determination of Low-Energy Constants of Wilson Chiral Perturbation Theory
arXiv:1303.3516 · doi:10.1007/JHEP05(2013)038
Abstract
By matching Wilson twisted mass lattice QCD determinations of pseudoscalar meson masses to Wilson Chiral Perturbation Theory we determine the low-energy constants $W'_6$, $W'_8$ and their linear combination $c_2$. We explore the dependence of these low-energy constants on the choice of the lattice action and on the number of dynamical flavours.
25 pages, 10 figures