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Minimal Hadronic Ansatz to Large-Nc QCD and Hadronic tau Decay

E. de Rafael
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Abstract

I report on some recent work done in collaboration with Santi Peris and Boris Phily (hep-ph/0007338) where, using the Aleph data on vector and axial-vector spectral functions, we test simple duality properties of QCD in the large-Nc limit which emerge in the approximation of a {\it 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.

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E. de Rafael. 2000-10-18. Minimal Hadronic Ansatz to Large-Nc QCD and Hadronic tau Decay. https://doi.org/10.1016/s0920-5632(01)01147-1

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