%0 Journal Article
%T Tests of large-Nc QCD from hadronic tau decay
%A S. Peris
%A B. Phily
%A E. de Rafael
%J Physics
%D 2000
%I arXiv
%R 10.1103/PhysRevLett.86.14
%X We use the Aleph data on vector and axial-vector spectral functions to test simple duality properties of QCD in the large Nc limit, which emerge in the approximation of a minimal hadronic ansatz of a spectrum of narrow states. These duality properties relate the short- and long-distance behaviours of specific correlation functions, which are order parameters of spontaneous chiral symmetry breaking, in a way that we find well supported by the data.
%U http://arxiv.org/abs/hep-ph/0007338v1