Comparison of Lattice and Chiral Perturbation Theory calculations of pion scattering lengths
arXiv:hep-ph/9607205 · doi:10.1016/S0370-2693(97)00057-9
Abstract
I compare the lattice calculation of Fukugita et al. for the pion S-wave scattering lengths to the predictions of Chiral Perturbation Theory to two loop accuracy. I find good agreement, despite the use of the quenched approximation in the lattice calculation.
Plain Latex, 7 pages, 2 figures