A five-dimensional effective model for excited light mesons

Details A five-dimensional effective model for excited light mesons A five-dimensional effective model for excited light mesons

2010-07-28

arxiv.org/abs/1007.4907v1

PoS QFTHEP2010:051,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, to appear in the proceedings of MENU2010

Scientific paper

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.

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