Physics opportunities at Jefferson Lab with a Neutral Particle Spectrometer in HallC

The unique scientific capabilities for studies of the transverse spatial and momentum structure of the nucleon offered by the HallC Jlab science program as enabled by the two-arm combination of a high-resolution neutral-particle spectrometer (NPS) and a magnetic spectrometer (HMS). It makes possible to validate QCD factorization, a cornerstone of 3D transverse momentum imaging, by measurements of the basic semi-inclusive neutral-pion cross section. In order to extract the real part of the Compton form factor without any assumptions NPS enables precision measurements of the deeply-virtual Compton scattering cross section at different beam energies. NPS intending to push the energy scale of real Compton scattering, the process of choice to explore factorization in a whole class of wide-angle processes and its extension to neutral pion photo-production, by measurements using the combination of high precision calorimetry. I will discuss the status of the instrumentation and the experimental program enabled by the NPS, as well as new science ideas.