Light-Front Holography: A First Approximation to QCD

Abstract

Starting from the Hamiltonian equation of motion in QCD, we identify an invariant light-front coordinate $\zeta$ which allows the separation of the dynamics of quark and gluon binding from the kinematics of constituent spin and internal orbital angular momentum. The result is a single variable light-front Schrodinger equation for QCD which determines the eigenspectrum and the light-front wavefunctions of hadrons for general spin and orbital angular momentum. This light-front wave equation is equivalent to the equations of motion which describe the propagation of spin-$J$ modes on anti-de Sitter (AdS) space.

4 pages. The limits of validity of the model are further discussed. To appear in Physical Review Letters

References in corpus (4)

• Light-Front Dynamics and AdS/QCD Correspondence: The Pion Form Factor in the Space- and Time-Like Regions
• Light-Front Dynamics and AdS/QCD Correspondence: Gravitational Form Factors of Composite Hadrons
• Maximum Wavelength of Confined Quarks and Gluons and Properties of Quantum Chromodynamics
• Determination of the effective strong coupling constant alpha_{s,g_1}(Q^2) from CLAS spin structure function data

Cited by in corpus (5)

• Pretzelosity $h_{1T}^{\perp }$ and quark orbital angular momentum
• Polarized Deep Inelastic and Elastic Scattering From Gauge/String Duality
• Electromagnetic Nucleon-to-Delta Transition in Holographic QCD
• Light-Front Holography and Novel Effects in QCD
• AdS/QCD and its Holographic Light-Front Partonic Representation