Particles That Flock: Strange Synchronization Behavior at the Large Hadron Collider: Scientific American

Particles That Flock: Strange Synchronization Behavior at the Large Hadron Collider: Scientific American: "Last summer physicists noticed that some of the particles created by their proton collisions appeared to be synchronizing their flight paths, like flocks of birds. The findings were so bizarre that “we’ve spent all the time since [then] convincing ourselves that what we were see ing was real..." The effect is subtle. When proton collisions result in the release of more than 110 new particles, the scientists found, the emerging particles seem to fly in the same direction.