Research PapersNo Access
A FIVE-DIMENSIONAL TOY MODEL FOR LIGHT HADRON EXCITATIONS
https://doi.org/10.1142/S0217751X10050196Cited by:1 (Source: Crossref)
Abstract
In the usual holographic approach to QCD, the meson spectrum is generated due to a nontrivial five-dimensional background. We propose an alternative five-dimensional scenario in which the spectrum emerges due to coupling to a scalar field whose condensation is supposed to be dual to the formation of gluon condensate and mimics the scale anomaly in QCD. The spectrum of model has finite number of discrete states plus continuum and reveals a Regge-like behavior in the strong coupling regime.
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