Matter-Antimatter Asymmetry – UPSC Prelims

  • Recently, Large Hadron Collider beauty (LHCb) experiment at CERN which studies the difference between matter and antimatter are trying to understand the asymmetry of matter & antimatter in Universe.
  • CERN in Switzerland is the world’s largest nuclear and particle physics laboratory.
  • At CERN, scientists and engineers are probing the fundamental structure of the Universe.
  • Physics predicts that matter and antimatter must be created in almost equal quantities, and that this would have been the case during the Big Bang. However, antimatter is rare in today’s universe.
  • Antimatter is the opposite of normal matter and the sub-atomic particles of antimatter have properties opposite those of normal matter. Like the electrical charge of those particles is reversed.
  • All the particles that make up the matter around us, such electrons and protons, have antimatter versions which are nearly identical, but with mirrored properties.
  • When an antimatter and a matter particle meet, they annihilate in a flash of energy.
  • Antimatter was first postulated by Arthur Schuster in 1896, given a theoretical footing by Paul Dirac in 1928, and discovered in the form of anti-electrons, dubbed positrons, by Carl Anderson in 1932.

Scroll to Top