2000/06/18 by Simonetta Liuti, Liuti, Simonetta
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0006209
7 pages, LaTex, 2 eps figures. Talk presented at HiX2000 Workshop, Temple University, Philadelphia (USA), March 2000
arxiv created 2000/06/18 · arxiv updated 2009/11/30
We examine the scale dependence in the resonance region of inclusive ep scattering. In particular we discuss the invariants other than Q2, 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, W2, plus a leading order power correction term. We find that the coefficient of the power correction at W2 < 4 GeV2 is relatively small, i.e. comparable in size to the one obtained in the large W2 region.