Dynamical holographic QCD with area-law confinement and linear Regge trajectories

摘要: We construct a new solution of five-dimensional gravity coupled to dilaton which encodes essential features holographic QCD backgrounds dynamically. In particular, it implements linear confinement, i.e., the area-law behavior Wilson loop, by means dynamically deformed anti-de Sitter metric. The predicted square masses light-flavored natural-parity mesons and their excitations lie on trajectories an approximately universal slope with respect both radial spin quantum numbers are in satisfactory agreement experimental data.