A lattice calculation of the pion form factor with Ginsparg-Wilson-type   fermions
  Results for Monte Carlo calculations of the electromagnetic vector and scalar form factors of the pion in a quenched simulation are presented. We work with two different lattice volumes up to a spatial size of 2.4 fm at a lattice spacing of 0.148 fm. The pion form factors in the space-like region are determined for pion masses down to 340 MeV. 
Stefano Capitani, Christof Gattringer, C. B. Lang