منابع مشابه
Matching Regge Theory to the OPE
The spectra of masses and decay constants for non-strange meson resonances in the energy range 0–2.5 GeV is analyzed. It is known from meson phenomenology that for given quantum numbers these spectra approximately follow linear trajectories with a universal slope. These facts can be understood in terms of an effective string description for QCD. For light meson states the trajectories deviate n...
متن کاملRegge spectrum from holographic models inspired by OPE
The problem of obtaining the Regge-like behaviour for meson mass spectrum in the hard-wall AdS/QCD models is addressed. We show that the problem can be solved by a simple incorporation of the effects of local vacuum condensates into such models. The slope of trajectories turns out to be determined by the local condensate of dimension 2 that is absent in the standard Operator Product Expansion. ...
متن کاملSpin–1 Correlators at Large N C : Matching Ope and Resonance Theory up to O(α S )
The relation between the quark–gluon description of QCD and the hadronic picture is studied up to order α s. The analysis of the spin–1 correlators is developed within the large N C framework. Both representations are shown to be equivalent in the euclidean domain, where the Operator Product Expansion is valid. By considering different models for the hadronic spectrum at high energies, one is a...
متن کاملMeson mass spectrum and OPE: matching to the large-Nc QCD∗†
The relations between masses and decay constants of variety of meson resonances in the energy range 0–3 GeV are verified from the string-like, linear mass spectrum for vector, axial-vector, scalar and pseudoscalar mesons with a universal slope. The way to match the universality with the Operator Product Expansion (OPE) is proposed. The necessity of small deviations from linearity in parameteriz...
متن کاملSolving Qcd Using Multi - Regge Theory ∗
This talk outlines the derivation of a high-energy, transverse momentum cutoff , solution of QCD in which the Regge pole and " single gluon " properties of the pomeron are directly related to the confinement and chiral symmetry breaking properties of the hadron spectrum. In first approximation, the pomeron is a single reggeized gluon plus a " wee parton " component that compensates for the colo...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2007
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2006.11.050