Field Theoretical Approaches in QCDNo Access

LINEAR MESON AND BARYON TRAJECTORIES IN ADS/QCD

HILMAR FORKEL

Departamento de Física, ITA-CTA, 12.228-900 São José dos Campos, São Paulo, Brazil

Institut für Theoretische Physik, Universität Heidelberg, D-69120 Heidelberg, Germany

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MICHAEL BEYER

Institut für Physik, Universität Rostock, D-18051 Rostock, Germany

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TOBIAS FREDERICO

Departamento de Física, ITA-CTA, 12.228-900 São José dos Campos, São Paulo, Brazil

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https://doi.org/10.1142/S0218301307008422Cited by:34 (Source: Crossref)

Abstract

An approximate holographic dual of QCD is constructed and shown to reproduce the empirical linear trajectories of universal slope on which the square masses of radially and orbitally excited hadrons join. Conformal symmetry breaking and other IR effects are described exclusively by deformations of the anti-de Sitter background metric. The predictions for the light hadron spectrum include new relations between ground state masses and trajectory slopes and are in good overall agreement with experimental data.

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