2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/214606The production of the sigma(500) meson in gamma gamma --> pi0 pi0 is studied. In particular, the KLOE data collected during the DAPHNE run at sqrt(s)= 1 GeV are appropriate to this purpose because of the strong reduction of Kaon backgrounds.13 pages, 9 figures, few comments addedHigh Energy Physics - Phenomenologytext