A PARTONIC PICTURE OF JET FRAGMENTATION IN NUCLEI
Inclusive hadron production in deeply inelastic scattering off a large nucleus (DISA) involves parton propagation through the nuclear medium and hadronization which could start inside the nucleus. In most of the kinematic region accessible in high-energy DISA, the hadron formation time is much larger than the nuclear size. Therefore, leading hadron suppression in DISA can be described by modification of the parton fragmentation via multiple scattering and induced energy loss.