Quantum Chromodynamics, the theory of quarks and gluons, whose interactions can be
described by a local SU (3) gauge symmetry with charges called “color quantum numbers” …

We summarize the ongoing scientific program of the 12 GeV Continuous Electron Beam
Accelerator Facility (CEBAF) and give an outlook into future opportunities. The program …

The last decade has seen a marked shift in how the internal structure of hadrons is
understood. Modern experimental facilities, new theoretical techniques for the continuum …

This paper describes a precise measurement of electron scattering off the proton at
momentum transfers of 0.003≲ Q 2≲ 1 GeV 2. The average point-to-point error of the cross …

The near-threshold photo or electroproduction of heavy vector quarkonium off the proton is
studied in quantum chromodynamics. Similar to the high-energy limit, the production …

The last five years have brought considerable progress in the study of the bound-state
problem in continuum quantum field theory. We highlight a subset of that progress; viz., that …

Precise proton and neutron form factor measurements at Jefferson Lab, using spin
observables, have recently made a significant contribution to the unraveling of the internal …

The ratio of the electric and magnetic form factors of the proton GE p/GM p, which is an
image of its charge and magnetization distributions, was measured at the Thomas Jefferson …

Dyson–Schwinger equations furnish a Poincaré covariant framework within which to study
hadrons. A particular feature is the existence of a nonperturbative, symmetry preserving …

There has been much activity in the measurement of the elastic electromagnetic proton and
neutron form factors in the last decade, and the quality of the data has been greatly …