Collider
Accelerator in which two counter-rotating beams are accelerated and forced to collide at the centre of detectors that was specifically designed for observing these events. Only a few particles collide; the rest continues its way to later collisions. One benefit of colliders is that the energy available during collisions corresponds to the sum of the beams' energies. That information is used in data analysis to look for events where new particles would be created.