Physical Anomalous Dimensions at Small x ∗
نویسنده
چکیده
I present a theoretical discussion of the uncertainties related to the QCD analysis of the proton structure function F2(x,Q) 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. DFF 248/4/96 April 1996 ∗Research supported in part by EEC Programme Human Capital and Mobility, Network Physics at High Energy Colliders, contract CHRX-CT93-0357 (DG 12 COMA).
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