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Quantum Chromodynamics and Other Field Theories on the Light Cone

  • Brodsky, S.
  • Pauli, H-C
  • Pinsky, S.
Published Article
Publication Date
May 29, 1997
Submission Date
May 29, 1997
DOI: 10.1016/S0370-1573(97)00089-6
arXiv ID: hep-ph/9705477
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We discuss the light-cone quantization of gauge theories as a calculational tool for representing hadrons as QCD bound-states of relativistic quarks and gluons, and also as a novel method for simulating quantum field theory on a computer. The light-cone Fock state expansion of wavefunctions provides a precise definition of the parton model and a general calculus for hadronic matrix elements. We present several new applications of light-cone Fock methods, including calculations of exclusive weak decays of heavy hadrons, and intrinsic heavy-quark contributions to structure functions. Discretized light-cone quantization, is outlined and applied to several gauge theories. We also discuss the construction of the light-cone Fock basis, the structure of the light-cone vacuum, and outline the renormalization techniques required for solving gauge theories within the Hamiltonian formalism on the light cone.

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