title: Exact correlation functions in SU(2) N=2 superconformal QCD.
abstract: We report an exact solution of 2- and 3-point functions of chiral primary fields in SU(2) N=2 super-Yang-Mills theory coupled to four hypermultiplets. It is shown that these correlation functions are nontrivial functions of the gauge coupling, obeying differential equations which take the form of the semi-infinite Toda chain. We solve these equations recursively in terms of the Zamolodchikov metric that can be determined exactly from supersymmetric localization on the four-sphere. Our results are verified independently in perturbation theory with a Feynman diagram computation up to 2 loops. This is a short version of a companion paper that contains detailed technical remarks, additional material, and aspects of an extension to the SU(N) gauge group.
authors.affiliation: Institut fur Theoretische Physik, ETH Zurich, CH-8093 Zurich, Switzerland.
authors.forename: Marco
authors.initials: M
authors.lastname: Baggio
authors.affiliation: Crete Center for Theoretical Physics and Crete Center for Quantum Complexity and Nanotechnology, Department of Physics, University of Crete, Heraklion 71303, Greece.
authors.forename: Vasilis
authors.initials: V
authors.lastname: Niarchos
authors.affiliation: Theory Group, Physics Department, CERN, CH-1211 Geneva 23, Switzerland.
authors.forename: Kyriakos
authors.initials: K
authors.lastname: Papadodimas