QCD resummation for semi-inclusive hadron production processes
  We investigate the resummation of large logarithmic perturbative corrections to hadron production in electron-positron annihilation and semi-inclusive deep-inelastic scattering. We find modest, but significant, enhancements of hadron multiplicities in the kinematic regimes accessible in present high-precision experiments. Our results are therefore relevant for the determination of hadron fragmentation functions from data for these processes. 
Daniele P. Anderle, Felix Ringer, Werner Vogelsang
hep-ph