NONLOCAL LIGHT CONE EXPANSIONS AND EVOLUTION EQUATIONS
1985
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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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