CPLEAR Experiment

The CPLEAR experiment studied fundamental particles called kaons, which can switch between matter and antimatter states. Conducted at CERN, it used high-energy collisions to produce kaons and tracked how they changed over time. This helped scientists understand CP violation—differences in the behavior of particles and their antimatter counterparts—which is essential for explaining why the universe is mostly matter. In essence, CPLEAR provided detailed insights into how subtle asymmetries in particle physics might have influenced the universe’s evolution.