Longitudinal dynamics and chiral symmetry breaking in holographic light-front QCD
Guy F. de Téramond, Stanley J. Brodsky
Abstract
The breaking of chiral symmetry in holographic light-front QCD is encoded in its longitudinal dynamics, with its chiral limit protected by the superconformal algebraic structure which governs its transverse dynamics. The scale in the longitudinal light-front Hamiltonian determines the confinement strength in this direction: It is also responsible for most of the light meson ground state mass consistent with the Gell-Mann-Oakes-Renner constraint. Longitudinal confinement and the breaking of chiral symmetry are found to be different manifestations of the same underlying dynamics as found in the 't Hooft large-${N}_{C}$ QCD ($1+1$) model.
Topics & Concepts
PhysicsChiral symmetry breakingQuantum chromodynamicsSymmetry breakingExplicit symmetry breakingSpontaneous symmetry breakingChiral anomalyHamiltonian (control theory)Particle physicsQCD vacuumQuantum electrodynamicsLattice QCDMathematical optimizationMathematicsBlack Holes and Theoretical PhysicsParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle Interactions