V+A and V-A Correlators at Large NC: From OPE to Resonance Theory

Details V+A and V-A Correlators at Large NC: From OPE to Resonance Theory V+A and V-A Correlators at Large NC: From OPE to Resonance Theory

2006-02-02

arxiv.org/abs/hep-ph/0602021v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 2 figures, proceedings of the talk given at HSQCD 2005, St. Petersburg, Russia, September 20-24 2005

Scientific paper

The spin-1 correlators are analysed in this talk through a large NC resonance
theory. The matching to perturbative QCD and the first terms in the OPE
constrains the hadronic parameters. A further sum-rule analysis shows the wider
range of validity of the resonance description, which can help to discern the
proper structure of the QCD mass spectrum.

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