Isospin symmetry breaking

Abstract

We discuss the separation of isospin-symmetric and isospin-breaking contributions in the hadronic observables within the framework of QCD plus QED. Further, we briefly review some recent work on the low-energy hadron phenomenology, in which the isospin-breaking effect plays a prominent role.

Comments: Plenary talk at Sixth International Workshop on Chiral Dynamics, 6-10 July 2009, Bern (Switzerland)