title: Perturbative QCD analysis of local duality in a fixed w2 framework.
abstract: We study the Q2 dependence of large x F2 nucleon structure function data, with the aim of providing a perturbative QCD based, quantitative analysis of parton-hadron duality. As opposed to previous analyses at fixed x, we use a framework in fixed W2. We uncover a breakdown of the twist-4 approximation with a renormalon type improvement at O(1/Q(4)) which affects the initial evolution of parton distributions.
authors.affiliation: University of Virginia, Charlottesville 22901, USA.
authors.forename: S
authors.initials: S
authors.lastname: Liuti
authors.forename: R
authors.initials: R
authors.lastname: Ent
authors.forename: C E
authors.initials: CE
authors.lastname: Keppel
authors.forename: I
authors.initials: I
authors.lastname: Niculescu