Preliminary Results on the Global Extraction of the  56Fe Nuclear Electromagnetic Response Functions R_L and R_Tand Comparisons to the Predictions of SuSAv2 Superscaling model

We present preliminary results from a global extraction of the ⁵⁶Fe  longitudinal  R_L and transverse R_T nuclear electromagnetic response functions from  an analysis of all available electron scattering data on iron. The response functions are extracted for energy transfer ν spanning the nuclear excitation, quasielastic (QE),  resonance and inelastic continuum  over a large range of  the square of the four-momentum transfer, Q² for both fixed values of Q² and fixed values of the  three-momentum transfer q.   Given the nuclear physics common to both electron and neutrino scattering from nuclei, extracted response functions from electron scattering spanning a large range of  Q² and  ν also provide a powerful tool for validation and tuning of neutrino  Monte Carlo (MC) generators. In this paper  we focus on comparison to the predictions of  an improved superscaling model  (SuSAv2).