\textsc{THE ORIGIN OF HADRON PRODUCTION IN DEEP INELASTIC SCATTERING}

We discuss the impact of data selection on the determination of non-perturbative transverse momentum dependence in semi-inclusive deep-inelastic scattering. In particular, we implement the recently introduced criteria that allow selection of data predominantly in the current fragmentation region, and apply this framework to pion and kaon multiplicity data from HERMES and COMPASS experiments. We compare the resulting unpolarized transverse momentum dependent distributions with previous extractions, and discuss the potential impact of the data selection criteria on future experiments at Jefferson Lab 12 and the Electron-Ion Collider.