2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/105798Recent results on subjet distributions from ZEUS are presented. The measured normalised cross sections were used to study the pattern of parton radiation. The comparison of the measurements with leading-logarithm parton-shower Monte Carlo models and perturbative QCD calculations shows a good agreement between data and predictions. Results on event-shape mean values and distributions are also presented. These measurements were used to test the predictions of the power-correction model for hadronisation. A universal value, within 10%, of the effective parameter alpha_0 of the model was obtained.8 pages, 7 figures, talk given at HEP2005 International Europhysics Conference on High Energy Physics, Lisbon, Portugal, July 21-27, 2005High Energy Physics - Experimenttext