Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-10-18
Nucl.Phys.Proc.Suppl. 96 (2001) 316-322
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages with 3 figures. Latex file. Contribution to the Euroconference QCD00, Montpellier, France
Scientific paper
10.1016/S0920-5632(01)01147-1
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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