Short-Range Correlations and the Free-Neutron Valance Structure

The lack of a neutron target has resulted in a decades-long effort to understand the free neutron structure in order to test SU(6) symmetry breaking mechanisms. Approaches to address this open question span a wide range of activities, many focused on extracting~the free neutron structure from proton $+$ deuterium DIS data. Here we present a novel approach to extracting the free neutron structure by utilizing all available structure functions of nuclei (from deuterium to lead), while consistently accounting for partonic medium-modifications in atomic nuclei. Using such a wide span of nuclei provides a large lever arm that allows us to precisely constrain the neutron~structure function, even at high-x. We also discuss extracting the free neutron structure from A$=$3 nuclei, as proposed by the MARATHON collaboration, and the theoretical uncertainties associated with such an extraction.~Finally, we present a complimentary approach to extracting nucleon modification from A$=$2,3 nuclei within a convolution model.