12916x May 2026

: Accurate Lattice QCD inputs help reduce systematic uncertainties in oscillation parameters, such as the CP-violating phase, which could explain the matter-antimatter asymmetry in the universe.

: By precisely modeling standard model interactions, the report argues that researchers can more easily identify "new physics" or non-standard neutrino interactions. 4. Impact on Future Facilities

: Providing a theoretical "ground truth" to improve the phenomenological models currently used in neutrino event generators. 3. Strategic Importance 12916x

The report emphasizes that as experiments move into the "precision era," the limiting factor will no longer be the number of neutrinos captured (statistical error) but the accuracy of the interaction models (systematic error). Lattice QCD provides the only first-principles method to solve these strong-force problems.

: Calculating the axial form factors of the nucleon, which are vital for predicting neutrino-nucleon cross-sections. : Accurate Lattice QCD inputs help reduce systematic

Lattice QCD and neutrino-nucleus scattering* - Springer Nature

: Transitioning from single-nucleon calculations to multi-nucleon systems and light nuclei to understand "nuclear effects" that can bias experimental results. Impact on Future Facilities : Providing a theoretical

The white paper outlines several primary goals for the USQCD community: