Greisen-Zatsepin-Kuzmin limit

English

Alternative forms

Etymology

From the surnames of the three physicists who proposed this limitation on the long distance travel of energetic particles. From Greisen + Zatsepin + Kuzmin. Named after the American physicist Kenneth Greisen, and the Soviet physicists Georgiy Zatsepin, and Vadim Kuzmin. The Soviet and the American teams each discovered the limit separately in the 1960s, being independently computed in 1966.

Proper noun

the Greisen-Zatsepin-Kuzmin limit

  1. (astronomy, physics) A theoretical upper limit on the energy of cosmic ray protons travelling from other galaxies through the intergalactic medium to the Milky Way.

Synonyms

abbreviated form
short form

Coordinate terms

  • EECR (class of particles over this limit)
  • OMG particle (the most energetic EECR discovered so far)
  • zevatron (placeholder name for that which accelerates particles above this limit)
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