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 ...

Scientists at CERN have observed an unexpected phenomenon within the world’s largest particle accelerator that suggests that the heaviest and shortest-lived particles in the universe may not be as ...

Add Yahoo as a preferred source to see more of our stories on Google. The particle, known as the Ξcc⁺ (Xi‑cc‑plus), is a new type of heavy proton-like particle containing two charm quarks and one down ...

Physicists know that their elegant theoretical description of forces and particles – the Standard Model – must be incomplete, ...

Trillions of times smaller than a grain of sand and smaller than an atomic proton or neutron, quarks are among the smallest particles in the universe. They are essentially building blocks for ...

A major obstacle in calculating the muon’s behavior is the strong force, the most powerful of the four fundamental forces, along with gravity, electromagnetism, and the weak force. It binds quarks ...

A neglected force produced by neutrinos and other particles helps atomic physics measurements align with predictions of the standard model.

As they probe deeper into the heart of the atom, discovering ever smaller and more mysterious particles and particles within particles, scientists have succeeded in bringing the once stable world of ...

Physicists just discovered a brand-new particle that appears to be an exotic cousin to the protons and neutrons that make up atoms. Those mundane subatomic particles are made up of even smaller ...

The sPHENIX particle detector, the newest experiment at the Relativistic Heavy Ion Collider (RHIC) at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, has released its first ...

Something is missing from the universe. Not misplaced, but structurally absent. About 85 percent of all matter in existence ...

As if atoms weren’t already mind-blowingly small, never mind subatomic particles, CERN researchers in the CMS Collaboration were sifting through data from the Large Hadron Collider (LHC) and ...