AD (Antiproton Decelerator)

The Antiproton Decelerator (AD) is a specialized scientific facility at CERN designed to produce and slow down antiprotons—antimatter particles that mirror protons but carry a negative charge. By decelerating these particles, scientists can study their properties and behavior in controlled environments. This research helps us understand fundamental aspects of matter and antimatter, including why our universe is dominated by matter. The AD is unique because it provides a steady supply of low-energy antiprotons, enabling experiments that could answer some of the universe's biggest questions about composition and symmetry.