Speaker
Gunnar Schnell
Description
One of the challenges faced in the analysis of semi-inclusive processes, like semi-inclusive deep-inelastic scattering, is the richness of the cross section with multi-dimensional dependence on various kinematic variables. The fully differential cross section of even just unpolarized lepton-nucleon scattering already requires at least five dimensions (single-hadron production) and even more so for more involved processes. Spin degrees of freedom often add further dependences. This requires special attention in experiment to have either a very good acceptance or at least control of it. In this talk I will briefly discuss some of the methods employed at HERMES and present some of the later highlights resulting from such HERMES analyses.
