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pair production

noun

  1. Physics. the simultaneous creation of a particle and its antiparticle by a nucleus or particle in an excited state, as when a photon is absorbed.


pair production

noun

  1. the production of an electron and a positron from a gamma-ray photon in a strong field as that passes close to an atomic nucleus


pair production

/ pâr /

  1. The simultaneous creation of a subatomic particle and its antiparticle from some other particle or a field fluctuation. A high-energy gamma ray photon, for example, can spontaneously create an electron-positron pair in a strong electric field. Pair production is essential to theories of particle physics; pair production from gamma rays is used to detect such rays in pair production telescopes , since electrons and positrons are easily detected.


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Word History and Origins

Origin of pair production1

First recorded in 1930–35
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Example Sentences

It is a long time since he formed his little theory of human pair-production and it is almost as long since he thought of it last.

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