Review Article

Color Confinement, Hadron Dynamics, and Hadron Spectroscopy from Light-Front Holography and Superconformal Algebra

Figure 8

Doubly virtual Compton scattering on a proton (or nucleus) can be measured for two spacelike photons , with minimal, tunable, skewness using positronium-proton scattering . One can also measure double deep inelastic scattering and elastic positronium-proton scattering. One can also create a beam of “true muonium" atoms [5, 6] using Bethe-Heitler pair production just below threshold.