Physical Anomalous Dimensions at Small $x$

Details Physical Anomalous Dimensions at Small $x$ Physical Anomalous Dimensions at Small $x$

1996-09-05

arxiv.org/abs/hep-ph/9609263v1

Z.Phys.C75:665-678,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages, LateX

Scientific paper

10.1007/s002880050512

I present a theoretical discussion of the uncertainties related to the QCD analysis of the proton structure function $F_2(x,Q^2)$ at small $x$. The role played by the `unphysical' gluon density is pointed out. It is shown how the study of more observables can reduce the theoretical uncertainty and, in particular, an alternative method of analysis, based on the introduction of physical anomalous dimensions, is suggested.

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