pair production


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Related to pair production: photodisintegration

pair production

The conversion of a high-energy (>1.022 MeV) gamma-ray photon, usually in the field of an atomic nucleus, into an electron and positron, which are formed simultaneously. See also annihilation; photon-photon absorption.

pair production

[′per prə‚dək·shən]
(physics)
The conversion of a photon into an electron and a positron when the photon traverses a strong electric field, such as that surrounding a nucleus or an electron.
References in periodicals archive ?
Therefore, with the lepton formation and quark-antiquark pair production model developed in this paper, we can understand the recent measurement of a tau particle in a muon neutrino beam as well as the early measurements of muon particles in electron neutrino beams.
The LEP accelerator has been upgraded to exceed the W pair production threshold, and provide high luminosity at these energies starting in 1997.