Electron-ion collider project could reveal atomic nuclei mysteries

The video tutorial explains the process of using beams of electrons and protons, or ions, accelerated to near-light speeds to collide at intersecting points. These collisions, surrounded by detectors, generate virtual photons that help analyze the internal structure of protons or nuclei, revealing the distribution of quarks and gluons. Two facilities, Brookhaven National Laboratory and Jefferson Lab, have submitted proposals to host the Electron-Ion Collider (EIC), each with different existing capabilities and requirements.

What are the differences between Brookhaven National Laboratory and Jefferson Lab in terms of their facilities?

Why is it important to have both a proton accelerator and an electron ring for the EIC?