In context|physics|lang=en terms the difference between particle and collider
is that
particle is (physics) any of various physical objects making up the constituent parts of an atom; an elementary particle or subatomic particle while
collider is (physics) any of several forms of particle accelerator in which two opposing beams of particles collide.
As nouns the difference between particle and collider
is that
particle is a very small piece of matter, a fragment; especially, the smallest possible part of something while
collider is (physics) any of several forms of particle accelerator in which two opposing beams of particles collide.