The Scale Dependence of Inclusive ep Scattering in the Resonance Region

Details The Scale Dependence of Inclusive ep Scattering in the Resonance Region The Scale Dependence of Inclusive ep Scattering in the Resonance Region

2000-06-18

arxiv.org/abs/hep-ph/0006209v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, LaTex, 2 eps figures. Talk presented at HiX2000 Workshop, Temple University, Philadelphia (USA), March 2000

Scientific paper

We examine the scale dependence in the resonance region of inclusive ep scattering. In particular we discuss the invariants other than Q^2, which have been proposed as a scale for pQCD evolution in a kinematical regime where both infrared singularities and power corrections are expected to be largest. We show that the region where most of the present data are available, can be described using NLO pQCD evolution at fixed invariant mass, W^2, plus a leading order power correction term. We find that the coefficient of the power correction at W^2 < 4 GeV^2 is relatively small, i.e. comparable in size to the one obtained in the large W^2 region.

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