The particles that are in an atom: protons, neutrons and electrons The particles that are in protons and neutrons: quarks The four fundamental forces: gravity, electromagnetism, the strong force and ...

The top quark’s extreme mass makes it decay almost immediately after it is produced. “The top and antitop quarks just have ...

Antimatter is a strange beast. Physicists believe that for every particle that exists in our universe, there is an antiparticle which is identical but has the opposite charge. But when antimatter ...

A view inside a proton moving at nearly the speed of light toward the viewer with its spin pointing horizontally shows differences in the spatial distributions of the momentum of up (left) and down ...

Newly released observations of the top quark -- the heaviest of all known fundamental particles -- could topple the standard model of particle physics. Data from collisions at the Tevatron particle ...

Scientists have found an incredible new particle that's part of the exotic family of tetraquarks. Tetraquarks are made of four quarks, which makes them quite unique. Most particles in nature are made ...

Physicists at Cern have discovered a plethora of new exotic particles being created in the collisions produced by the Large Hadron Collider over the past few years. So many have been found, in fact, ...

Interior of the Projectile Spectator Detector (PSD) used in the NA61/SHINE experiment at CERN. In collisions of argon and scandium atomic nuclei, scientists from the international NA61/SHINE ...