Scale Dependence of Hadronic Wave Functions and Parton Densities

Details Scale Dependence of Hadronic Wave Functions and Parton Densities Scale Dependence of Hadronic Wave Functions and Parton Densities

2002-05-23

arxiv.org/abs/hep-ph/0205272v2

Phys.Lett. B545 (2002) 345-351

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, references added

Scientific paper

10.1016/S0370-2693(02)02596-0

We study how the components of hadronic wave functions in light-cone quantization depend on the ultraviolet cut-off by relating them in a systematic way to the matrix elements of a class of quark-gluon operators between the QCD vacuum and the hadrons. From this, we derive an infinite set of scale-evolution equations for the individual contributions to parton distributions from the Fock expansion. When summed over all the contributions, we recover the well-known DGLAP equation.

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