Pair production is the creation of an elementary particle and its antiparticle, for example an electron and its antiparticle, the positron, a muon and antimuon, or a tau and antitau. Usually it occurs when a photon interacts with a nucleus, but it can be any other neutral boson, interacting with a nucleus, another boson, or itself. This is allowed...
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in physics, formation or materialization of two electrons, one negative and the other positive (positron), from a pulse of electromagnetic energy ... [6 related articles]
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the simultaneous formation of a positron and an electron as a result of the interaction of a photon of sufficient energy with the field of a nucleus
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A collision process for gamma rays with energies greater than 1022-keV (two electron masses) where an electron /positron pair is produced. A heavy nucleus must be present for pair production. For high-energy gamma rays the pair production process is proportional to Z2 and ln(gamma).
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<physics> The simultaneous production of an electron and a positron by an interaction of a photon or a fast charged particle with the electronic field of a nucleus or other particle. ... (16 Dec 1997) ...
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Type: Term Definitions: 1. creation of a positron and electron, each of mass 0.511 MeV, when an incident photon of energy greater than 1.02 MeV is absorbed by matter; occurs in high-energy radiotherapy.
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[
n] - the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus
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A collision process for gamma rays with energies greater than 1022-keV (two electron masses) where an electron /positron pair is produced. A heavy nucleus must be present for pair production. For high-energy gamma rays the pair production process is proportional to Z2 and ln(gamma).
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https://www.encyclo.co.uk/local/20039
The conversion of energy into matter in which a particle and its antiparticle are produced. This usually refers to the production of a electron and a positron (antielectron). See also: Antiparticle, Pair Annihilation.
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pair creation noun the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus
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https://www.encyclo.co.uk/local/20974
A collision process for gamma rays with energies greater than 1022-keV (two electron masses) where an electron /positron pair is produced. A heavy nucleus must be present for pair production. For high-energy gamma rays the pair production process is proportional to Z2 and ln(gamma).
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https://www.encyclo.co.uk/local/21092
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