NONLOCAL LIGHT CONE EXPANSIONS AND EVOLUTION EQUATIONS

1985
10 pages
Published in:
  • Z.Phys.C 26 (1985) 591-600

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1985199520052015202502468
Abstract: (Springer)
A new variant of the nonlocal light-cone expansion in QCD is proposed. The anomalous dimension of the corresponding fermion flavour nonsinglet operator is calculated in the one-loop approximation and shown to coincide (up to a trivial diagonal factor) with the Brodsky-Lepage kernel. The connection of our approach with the standard local conformal light-cone expansion is briefly discussed. An exclusive light-cone dominated process is considered within the framework of our formalism. The evolution equation obtained earlier by different methods is recovered in a particularly straightforward and compact manner.
  • QUANTUM CHROMODYNAMICS: OPERATOR PRODUCT EXPANSION
  • LIGHT CONE BEHAVIOR
  • NONLOCAL
  • FIELD THEORY: SCALAR
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