5 papers
Renormalons and Higher-Twist Contributions to Structure Functions
M. Maul, E. Stein, L. Mankiewicz +2
We review the possibility to use the renormalons emerging in the perturbation series of the twist-2 part of the nonsinglet structure functions FL, F2, F3, and g1 to make approximat…
A study on Delta u and Delta d in charged current events using polarized beams at HERA
J. G. Contreras A. De Roeck, M. Maul
Charged current events are studied at HERA with polarized beams, using a Monte Carlo event generator and taking into account detector smearing effects. The observed asymmetries are…
The polarised gluon density from di-jet events in DIS at a polarised HERA
G. Radel, A. De Roeck, M. Maul
We present a possible direct measurement of the polarised gluon density in LO from di-jet production in polarised deep inelastic ep scattering, assuming the kinematics of t…
Semi-inclusive asymmetries with polarized proton beams at HERA
M. Maul, J. G. Contreras, H. Ihssen +1
The prospects of semi-inclusive measurements with polarized proton beams at HERA are discussed. Detailed simulations show that one can disentangle the valence-quark and sea-quark c…
Recent developments of PEPSI and SPHINX
O. Martin, M. Maul, A. Schafer
Recent developments of the two MC-generators SPHINX and PEPSI are discussed. In SPHINX the process of polarized photo production was included to simulate the potential of a polariz…