Light-front Holography - A New Approach to Relativistic Hadron Dynamics and Nonperturbative QCD

Conference · Wed Jun 20 04:00:00 EDT 2012

OSTI ID:1043850

de Teramond, Guy F; Brodsky, Stanley J

The holographic mapping of gravity in AdS space to QCD, quantized at fixed light-front time, provides a precise relation between the bound-state amplitudes in the fifth dimension of AdS space and the boost-invariant light-front wavefunctions describing the internal structure of hadrons in physical space-time. In particular, the elastic and transition form factors of the pion and the nucleons are well described in this framework. The light-front AdS/QCD holographic approach thus gives a frame-independent first approximation of the color-confining dynamics, spectroscopy, and excitation spectra of relativistic light-quark bound states in QCD. More generally, we show that the valence Fock-state wavefunctions of the eigensolutions of the light-front QCD Hamiltonian satisfy a single-variable relativistic equation of motion, analogous to the nonrelativistic radial Schroedinger equation, with an effective confining potential which systematically incorporates the effects of higher quark and gluon Fock states. The proposed method to compute the effective interaction thus resembles the two-particle-irreducible functional techniques used in quantum field theory.

• Research Organization: SLAC National Accelerator Laboratory (SLAC)
• Sponsoring Organization: US DOE Office of Science (DOE SC)
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1043850
• Report Number(s): SLAC-PUB-15094; arXiv:1206.4365
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
APPROXIMATIONS
BOUND STATE
DIMENSIONS
EXCITATION
FORM FACTORS
FUNCTIONALS
GLUONS
HADRONS
HAMILTONIANS
HOLOGRAPHY
NUCLEAR PHYSICS
NUCLEONS
PIONS
Phenomenology-HEP
Theory-HEP
HEPPH
HEPTH
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
SCHROEDINGER EQUATION
SPECTRA
SPECTROSCOPY
VALENCE