20 citations · 34 across the 5 of their papers we have counts for
5 papers
Nonpartonic effects in pion electroproduction in the HERMES kinematical region
V. Uleshchenko, A. Szczurek
The presentation is concerned with higher twist corrections of nonpartonic origin to semi-inclusive observables in the kinematical region relevant for the HERMES experiment. We dem…
asymmetry and semi-inclusive production of pions in DIS
A. Szczurek, V. Uleshchenko, J. Speth
We investigate unambiguities in the extraction of the asymmetry from semi-inclusive production of pions in DIS. The role of several effects beyond the quark-parto…
On the range of validity of the QCD-improved parton model
A. Szczurek, V. Uleshchenko
Based on the world DIS data we extract the experimental F_2^p-F_2^n as a function of Bjorken-x and photon virtuality Q^2, using two different methods. Both methods lead to identica…
\bar u - \bar d asymmetry - a few remarks
A. Szczurek, V. Uleshchenko
We make a few remarks on possible sources of uncertainties of the asymmetry obtained by different methods and comment on its possible verification in the future.…
Nonpartonic components in the nucleon structure functions at small Q^2 in a broad range of x
A. Szczurek, V. Uleshchenko
We construct a simple two-phase model of the nucleon structure functions valid for both small and large Q^2 and in the broad range of Bjorken x. The model incorporates hadron domin…