Speaker
Description
We discuss the semi-inclusive deep inelastic scattering (SIDIS) process from a phenomenological perspective, focusing especially on the unpolarized Breit frame transverse momentum spectrum and its associated azimuthal modulations. We find that experimental measurements of the large-$P_{h\perp}$ cross section and azimuthal asymmetries may constrain the theoretical uncertainties associated with the collinear parton distributions, particularly the fragmentation functions. Additionally, we perform a case study on the reconstruction of the unpolarized cross section and azimuthal asymmetries at Jefferson Lab's Hall C, simulating its high momentum and super high momentum spectrometer acceptances. We find significant, non-trivial distortions in the reconstructed cross sections and significant systematic biases from the measured angular coverage. This result underscores the need to reframe the treatment of experimental data in global analyses through simulation-based inference.