Spin flipper upends protons

Protons spin. It's an intrinsic property that can affect experiments at accelerators that use beams of protons. Yet flipping proton spins could offer insights into nuclear physics experiments that study the first moments ...

How did the proton get its spin?

Calculating a proton's spin used to be an easy college assignment. In fact, Carl Gagliardi remembers answering that question when he was a physics graduate student in the 1970s. But the real answer turned out not to be simple ...

Physicists zoom in on gluons' contribution to proton spin

By analyzing the highest-energy proton collisions at the Relativistic Heavy Ion Collider (RHIC), a particle collider at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, nuclear physicists have gotten ...

Smashing polarized protons to uncover spin and other secrets

If you want to unravel the secrets of proton spin, put a "twist" in your colliding proton beams. This technique, tried and perfected at the Relativistic Heavy Ion Collider (RHIC)—a particle collider and U.S. Department ...

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