Artur Ankowski
Determination of the argon and titanium spectral functions from (e, e'p) data
Reliable reconstruction of neutrino energy in the Deep Underground Neutrino Experiment and in the Fermilab-based short-baseline oscillation program requires a realistic description of the ground state properties of the argon nucleus. Toward this goal, the E12-14-012 experiment in Jefferson Lab Hall A measured proton knockout from argon and titanium (the mirror nucleus of argon) induced by scattering of 2.2-GeV electrons, collecting data over a broad range of the initial proton's momenta and the excitation energies of the residual nucleus. Presenting the results of the recent papers, L. Jiang et al. PRD 105, 112002 (2022) and PRD 107, 012005 (2023), I will describe the analysis that led to the extraction of the proton spectral functions of argon. I also will discuss the obtained results in the context of past proton-knockout experiments.