A five-dimensional toy-model for light hadron excitations
High Energy Physics - Phenomenology
2014-11-20 v2
Abstract
In the usual holographic approach to QCD, the meson spectrum is generated due to a non-trivial 5-dimensional background. We propose an alternative 5-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.
Cite
@article{arxiv.0908.0457,
title = {A five-dimensional toy-model for light hadron excitations},
author = {S. S. Afonin},
journal= {arXiv preprint arXiv:0908.0457},
year = {2014}
}
Comments
10 pages, to be published in Int. J. Mod. Phys. A