QCD and a Holographic Model of Hadrons
Abstract
We propose a fivedimensional framework for modeling lowenergy 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 antide Sitter/conformal field theory correspondence. The model naturally incorporates properties of QCD dictated by chiral symmetry, which we demonstrate by deriving the GellMannOakesRenner relationship for the pion mass.
 Publication:

Physical Review Letters
 Pub Date:
 December 2005
 DOI:
 10.1103/PhysRevLett.95.261602
 arXiv:
 arXiv:hepph/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
 EPrint:
 4 pages, revtex, v2: formula for rhopipi coupling corrected