Chiral extrapolations for nucleon electric charge radii

Understand

Lattice simulations for the electromagnetic form factors of the nucleon yield insights into the internal structure of hadrons.

• The logarithmic divergence of the charge radius in the chiral limit poses an interesting challenge in achieving reliable predictions from finite-volume lattice simulations.
• Recent results near the physical pion mass are examined in order to confront the issue of how the chiral regime is approached.
• The electric charge radius of the nucleon presents a forum for achieving consistent finite-volume corrections.