2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/103368We present a calculation of pion electromagnetic and scalar form factors in two-flavor QCD with the non-perturbatively O(a)-improved Wilson fermion. Chiral extrapolation of the corresponding charge radius is discussed based on the chiral perturbation theory.6 pages, 4 figures, presented at Lattice 2005 (Weak matrix elements), Dublin, July 25-30, 2005, to appear in Proceedings of ScienceHigh Energy Physics - Latticetext