Tests of Chiral Perturbation Theory at DAΦNE Cornet Sánchez del Águila, Fernando Photon-photon collisions Direct cp violation One-loop 2 loops Scattering Decays Pi Presented at the XXIII International School of Theoretical Physics "Recent Development in Theory of Fundamental Interactions" Ustrón. Poland, september 15-22, 1999. DAΦNE will offer an opportunity to check Chiral Perturbation Theory predictions at higher order. In this talk I have selected a few topics for which it is expected that the lowest order calculation will not be sufficient in order to compare with the experimental results. In particular I will discuss pion pair production in two photon collisions, Kl3 and Kl4 decays. 2014-07-01T07:57:13Z 2014-07-01T07:57:13Z 1999 info:eu-repo/semantics/article Cornet, F. Tests of Chiral Perturbation Theory at DAΦNE. Acta Physica Polonica B, 30(11): 3285-3301 (1999). [http://hdl.handle.net/10481/32415] 0587-4254 1509-5770 http://hdl.handle.net/10481/32415 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ info:eu-repo/semantics/openAccess Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License Jagiellonian University