Applied Chiral Perturbation Theory
نویسنده
چکیده
I consider some selected topics in chiral perturbation theory (CHPT) as probed at colliders such as DAΦNE. Emphasis is put on processes involving pions in the isospin zero S-wave which require multi-loop calculations. These include the scalar form factor of the pion, two–photon fusion into pion pairs and Kl4–decays. The physics of the chiral anomaly is briefly touched upon INVITED LECTURE SUMMER SCHOOL ON HADRONIC ASPECTS OF COLLIDER PHYSICS Zuoz, Switzerland, August 1994 CRN–94/53 September 1994 ‡ Address after October 1st, 1994: Universität Bonn, Institut für Theoretische Kernphysik, Nussallee 14–16, D–53115 Bonn, Germany
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