1303.3516 (Gregorio Herdoiza et al.)

Determination of Low-Energy Constants of Wilson Chiral Perturbation
Theory    [PDF]

Gregorio Herdoiza, Karl Jansen, Chris Michael, Konstantin Ottnad, Carsten Urbach

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.

View original: http://arxiv.org/abs/1303.3516