Neural Network Hears Polarization
In particle scattering experiments, the target is often polarized: nuclei are aligned so that their spins point predominantly in one direction. The degree of this alignment affects the collision outcomes.
A Microwave for the Proton: How Automation Keeps the Spin
At Fermilab's accelerator, a particle beam strikes a target of frozen ammonia. The hydrogen nuclei inside are like tiny tops, and physicists need them all spinning the same way. Then the collisions reveal how the proton's spin is put together.