Tests of large-Nc QCD from hadronic tau decay

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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.
4 pages, 2 figures

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/197115

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ph/0007338
 http://arxiv.org/abs/hep-ph/0007338
 Phys.Rev.Lett.86:14-17,2001
 doi:10.1103/PhysRevLett.86.14

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arXiv