QCD and a Holographic Model of Hadrons
Abstract
We propose a five-dimensional framework for modeling low-energy properties of QCD. In the simplest three parameter model we compute masses, decay rates and couplings of the lightest mesons. The model fits experimental data to within 10%. The framework is a holographic version of the QCD sum rules, motivated by the anti-de Sitter/conformal field theory correspondence. The model naturally incorporates properties of QCD dictated by chiral symmetry, which we demonstrate by deriving the Gell-Mann-Oakes-Renner relationship for the pion mass.
- Publication:
-
Physical Review Letters
- Pub Date:
- December 2005
- DOI:
- arXiv:
- arXiv:hep-ph/0501128
- Bibcode:
- 2005PhRvL..95z1602E
- Keywords:
-
- 11.25.Tq;
- 11.10.Kk;
- 11.25.Wx;
- 12.38.Cy;
- Gauge/string duality;
- Field theories in dimensions other than four;
- String and brane phenomenology;
- Summation of perturbation theory;
- High Energy Physics - Phenomenology;
- High Energy Physics - Theory;
- Nuclear Theory
- E-Print:
- 4 pages, revtex, v2: formula for rho-pi-pi coupling corrected