Scientists at the Relativistic Heavy Ion Collider have observed particles emerging directly from empty ...

Particle accelerators reveal the heart of nuclear matter by smashing together atoms at close to the speed of light. The high-energy collisions produce a shower of subatomic fragments that scientists ...

Deep inside every atom lies a restless world of quarks and gluons—the tiny building blocks that hold everything together, from rocks to stars. For decades, physicists have tried to understand how ...

Collision physics is a research area within atomic, molecular, and optical physics that investigates the fundamental processes occurring when particles such as atoms, ions, electrons, or molecules ...