Using MARATHON data to constrain neutron structure and deuteron nuclear effects

The MARATHON collaboration recorded data in the DIS region with tritium (t), helium-3 (h), deuterium (d), and hydrogen (p) targets to study the neutron structure function, F_2n. By exploiting the similarity of nuclear effects in h and t, the nucleon structure function ratio, F_2n/F_2p, can be extracted from the h/t ratio more precisely than the traditional method using the d/p ratio. This extraction can then be compared to results from d/p to study nuclear effects in the deuteron at high-x, where they are relatively unconstrained. In this talk, I will present a new, detailed examination of the model dependence of the extraction of F_2n/F_2p as well as a discussion of its impact on our knowledge of nuclear effects in deuteron and other light nuclei.