Pions are some of matter’s simplest particles. They’re built from the same building blocks as protons and neutrons, smaller particles known as quarks. While a proton is made from three quarks, only ...

A result 20 years in the making: Most precise measurement yet of the neutral pion confirms predictions of a fundamental symmetry DOE/Thomas Jefferson National Accelerator Facility Nuclear physicists ...

Researchers have shown that in polarized proton-proton collisions, the neutral pions in the very forward area of collisions -- where direct interactions involving quarks and gluons are not applicable ...

Nearly 75 years after the puzzling first detection of the kaon, scientists are still looking to the particle for hints of physics beyond their current understanding. All Clifford Charles Butler and ...

Pionic helium In this experiment, a pion – shown here with one orange and one blue particle representing its quark and anti-quark – replaces one of the two electrons in the helium atom. This new ...