The recent establishment of non-zero and relatively large θ₁₃ has paved the way for the next generation of long-baseline neutrino oscillation experiments to probe CP violation in the lepton sector, a critical ingredient in understanding the persistent question of how the Universe evolved from its birth to its current matter-dominated state. To enable a discovery of CP violation, such neutrino experiments will also need to determine the neutrino mass-hierarchy and provide more precise measurements of the neutrino mixing parameters. Combined, this inquiry will lead to a full understanding of lepton mixing which could provide clues to new physics that may govern the mixing pattern or reveal new phenomenon that cannot be accommodated by the standard three-neutrino model.

The realization of these goals requires detailed spectral analysis of the observed neutrino interactions. Thus, they rely heavily on the modeling of neutrino-nucleus interactions to predict the observable quantities, such as the outgoing lepton kinematics and final hadronic states, necessary to determine the incoming neutrino energy and hence extract the neutrino oscillation parameters from the observed spectra. Recent neutrino interaction measurements have already revealed the inadequacy of models in present use, therefore highlighting an urgent need to better understand the underlying nuclear physics and establish a path toward incorporating and validating new models.

This workshop will gather experts from the neutrino/electron-scattering and nuclear theory communities to discuss the most critical issues in neutrino and antineutrino scattering on nuclei over a period of 10 days. The workshop will focus on several key topics:

• Quasi-Elastic Scattering
• Photon Production in Neutrino-Nucleus Interactions
• Transition Region/Deep Inelastic Scattering