Challenges in Hadronic Form Factor Calculations

Understand

There is an extensive history of form factor calculations on the lattice, primarily with ground states for both initial and final states.

• However, there have never been any radially excited transition form factor calculations.
• Furthermore, the lattice faces difficulty in extracting signal from noise at large transfer momenta ($Q^2$).
• These measurements could give important theoretical input to experiments, such as those of JLab's 12 GeV program and studies of deformation of the nucleon.