2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/205485We discuss internal structure of an exotic hadron by using fragmentation functions. The fragmentation functions for the f_0(980) meson are obtained by a global analysis of e^++e^- \to f_0+X data. Quark configuration of the f_0(980) could be determined by peak positions and second moments of the obtained fragmentation functions.4page, 2eps figures, To appear in the proceedings of Chiral Symmetry in Hadron and Nuclear Physics (Chiral 07), Osaka, Japan, 13-16 Nov. 2007High Energy Physics - Phenomenologytext