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Dark Matter

Dark Matter:

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.