It's a twenty-year-old question: how much do the constituent quarks and gluons contribute to the spin of a nucleon? New results from the COMPASS experiment add to the picture. Naively, the proton ...

I took Proton Mail for a spin and came away impressed. Here, I'll discuss specific features that make me love Proton Mail, highlighting what sets it apart from Gmail. If you are curious about a ...

This is quarks' motion around a proton's spin axis and perpendicular to its direction of motion. The new calculation precisely matches model-based reconstructions from particle collision data.

A recent study by researchers from Peking University demonstrates the potential of nuclear electric resonance to control the nuclear spins of nitrogen atoms in DNA using electric field gradients, ...