But only in the last 70 years have we known for certain they were there. In 1956, physicists Clyde Cowan and Frederick Reines ...

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 standard model of particle physics represents the most comprehensive theory about fundamental or subatomic particles and forces in the universe. The model describes how matter and antimatter ...

Data from billions of proton collisions reveal that subatomic particles called W + and W − bosons keep company with a photon. You have full access to this article via your institution.

What is everything made of? It’s the fundamental question that lies at the heart of particle physics. Today, scientists are using gigantic, atom-smashing particle accelerators to probe deeper into the ...

PROVIDENCE, R.I. [Brown University] — Amid the many mysteries of quantum physics, subatomic particles don’t always follow the rules of the physical world. They can exist in two places at once, pass ...

One of the world's most sophisticated scientific facilities is turning to ultra-low temperatures to try and unravel hidden secrets of our Universe.

Muons are unstable subatomic particles that spontaneously and rapidly transform into other particles via a process known as electroweak decay. Altering the speed with which muons decay into other ...

The world's largest and most powerful particle accelerator smashed protons together on Friday, bringing scientists closer to understanding the Big Bang. CERN researchers put three beams of protons ...