
The SciencesJune 1, 2019
The Experiment That Will Probe the Deepest Recesses of the Atom
Where do protons and neutrons get their mass and spin? Surprisingly, we don't know. A new facility promises to peek inside these particles to find answers
Rikutaro Yoshida is a principal scientist at the Thomas Jefferson National Accelerator Facility. He is also the director of the EIC Center, which helps to advance and promote the science program of the future facility.

The Experiment That Will Probe the Deepest Recesses of the Atom
Where do protons and neutrons get their mass and spin? Surprisingly, we don't know. A new facility promises to peek inside these particles to find answers