Large Q^2 statistics at different colliders

[CAF123]

How tractable is it experimentally to measure deeply virtual compton scattering in bins of large Q^2, where Q^2 is the virtuality of the incoming photon, at e.g. Jefferson Lab which collides electron and proton?

I know at LHC, colliding proton-proton, such processes would instead be statistics dominated by bins of low Q^2, as there the influx of photons would be nearly on-shell.

 

[LightHero]

It is possible to measure deeply virtual Compton scattering (DVCS) in bins of large Q^2 at Jefferson Lab, however it would be experimentally challenging. DVCS is a process in which a virtual photon interacts with an electron or proton, and the scattered electron or proton carries away most of the momentum of the incoming virtual photon. This means that in order to measure DVCS at high Q^2, high-energy electrons and protons must be used. At Jefferson Lab, this requires high intensity, high-energy electron beams, and the ability to detect the scattered particles at very low angles. These conditions are difficult to achieve in practice, and so measuring DVCS in bins of large Q^2 at Jefferson Lab is challenging experimentally.