The α 2 s correction to the Ellis-Jaffe sum rule for the structure function g 1 of polarized deep inelastic lepton-nucleon scattering is calculated.

It is well known that soft hadron-hadron scattering can be described by Regge phenomenology, which models the total, elastic and single and double diffractive dissociation cross sections in terms of reggeon and pomeron exchange [1]. At high energies, it is the pomeron exchange mechanism that dominates the total cross section [2]. However, until recently, our understanding of the pomeron in term...

We show that parton confinement in the final state generates large 1/Q2 corrections to Bjorken scaling, thus leaving less room for the logarithmic corrections. In particular, the x-scaling violations at large x are entirely described in terms of power corrections. For treatment of these non-perturbative effects, we derive a new expansion in powers of 1/Q2 for the structure function that is free...

We study nuclear effects in charged current deep inelastic neutrino–iron scattering in the framework of a χ-analysis of parton distribution functions. We extract a set of iron PDFs and show that under reasonable assumptions it is possible to constrain the valence, light sea and strange quark distributions. We compare our results with nuclear parton distribution functions from the literature and...

I review recent progress in analysing deep inelastic scattering structure functions in global analyses. The new ingredients are new data and attempts to incorporate heavy quarks consistently. A new way of including the resummation of large log 1/x terms is discussed. INTRODUCTION Since we last met in Rome last year there has been progress in our understanding of deep inelastic scattering (DIS) ...

We pursue the hypothesis that the events with a large rapidity gap, observed at HERA, reflect the scattering of electrons off lumps of wee partons inside the proton. A simple scaling behaviour is predicted for the diffractive structure functions, which are related to the inclusive structure function F2(x,Q ) at small values of the scaling variable x. The results are compared with recent measure...

A simple semiquantitative picture of diffractive electroproduction is described. Although the diffractive component of F 2 is approximately independent of Q 2 and W 2 , this mechanism is " soft, " i.e. it depends upon large-distance physics and is not readily describable within perturbative QCD.