One of the most sensitive dark matter detector experiments named LUX-ZEPLIN (LZ) in the U.S.A, has been used for finding evidence of dark matter in the universe.
- All interactions in the universe are a result of four fundamental forces acting on particles — strong nuclear force, weak nuclear force, electromagnetic force and gravitation.
- Dark matter is particles that do not have a charge — which means they do not interact through electromagnetic interactions.
- “dark”: because they do not emit light.
- “matter”: because they possess mass like normal matter and hence interact through gravity.
- Dark matter is elusive because: Gravitational force is extremely weak.
- A particle that interacts so weakly becomes rather elusive to detect.