出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:The study of particle production provides valuable insights into parton fragmentation and hadronisation processes and thereby helps understanding QCD in its perturbative and non-perturbative regime. In this talk fundamental tests of QCD factorisation and quark fragmentation universality are presented. Comparisons of fragmentation function results from ep scattering at HERA, both from deep inelastic scattering and photoproduction, with those from e+e and pp experiments are shown. High precision tests of perturbative QCD predictions and of alternative resummation approaches, such as the modified leading-logarithmic approximation, are also presented. In addition a search for parton dynamics beyond DGLAP at the lowest accessible Bjorken x domain at HERA is presented.