A Model Independent Approach to Semi-Inclusive Deep Inelastic Scattering

Abstract

We present a method for extraction of detailed information on polarized quark densities from semi-inclusive deep inelastic scattering l+N -> l+h+X, in both LO and NLO QCD without any assumptions about fragmentation functions and polarized sea densities. The only symmetries utilised are charge conjugation and isotopic spin invariance of strong interactions.

Comments: a talk given at the 16th Intern. Spin Physics Symposium, SPIN2004, Trieste, Italy, 5 pages