Ah, dark matter. Creator of the universe, sculptor of galaxies, great brewer of coffee (probably). There seems to be nothing it can’t do, or isn’t responsible for, but there’s just one problem: Where ...

Pion exchange: the team used data from the HERA accelerator, which ran at DESY in Hamburg. (Courtesy: DESY) Gluons contribute around 30% to the total momentum of energetic pions, which is about three ...

Dark matter is the mysterious stuff that cosmologists think makes up some 85 percent of all the matter in the universe. A new theory says dark matter might resemble a known particle. If true, that ...

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 ...

The physicist César Lattes, who is honored today (July 11) in a Google Doodle, is famous across Latin America for his discovery of the pion — a subatomic particle produced by shockwaves from exploding ...

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 ...

What if the odds of an event occurring were about one in 10 billion? This is the case for the decay of a positively charged particle known as a kaon into another positively charged particle called a ...

The particle physicist Donald Perkins, who has died aged 97, made seminal discoveries about the structure of the proton, and nuclear interactions at extreme energies, and first proposed the use of ...

Physicists at CERN's Large Hadron Collider in Switzerland said Wednesday that they had discovered a new subatomic particle that looks like the Higgs boson, a potential key to an understanding of why ...