2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/111288In this PhD-thesis effects from intrinsic transverse momentum are studied in several hard scattering processes with an emphasis on color gauge invariance. The thesis is intended for beginning PhD-students as well as for the experts.160 pages, 138 figures, PhD thesisHigh Energy Physics - Phenomenologytext