pair production


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to pair production: photodisintegration

pair production

n.
The simultaneous creation of a subatomic particle and its antiparticle from another form of energy, especially the production of a positron and an electron from a gamma ray photon in a strong electric field, such as that surrounding a nucleus.

pair production

n
(Nuclear Physics) 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
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pair production - the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus
natural action, natural process, action, activity - a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"
Translations
References in periodicals archive ?
Higgs pair production is directly sensitive to the Higgs trilinear coupling and provides crucial information on the electroweak symmetry breaking mechanism.
Photon processes include gamma conversion or pair production, photoelectric effect, Compton scattering, Rayleigh scattering, and muon pair production.
Photoelectric effect, Compton scattering, and pair production mechanisms can explain the interaction of photons with the GAGOC and CMO scintillator materials.
New York, NY, August 01, 2014 --(PR.com)-- Researchers from Creative Diagnostics have developed a more efficient workflow to manufacture and optimize the process of antibody pair production. On the basis, Creative Diagnostics is able to shorten the time required to prepare the immunoassays.
After it again starts increasing and becomes constant at around photon energy of 100 MeV in pair production region, various peaks in [mu]/[rho] values are observed for the glasses in photoelectric absorption region due to K-edge absorption (1.072, 8.333, and 8.8 keV), L-edge absorption (1.008, 1.586, 1.52, and 1.304 keV), and M-edge absorption (3.851, 3.554, 3.066, 2.586, and 2.484 keV).
Recalling that any sufficiently strong positive potential acting on the vacuum state enables electron-positron pair production to take place in free space (see any relativistic discussion of the Klein Paradox, e.g.
Photoelectric effect, Compton scattering, and pair production eject electrons from the atoms of the material.
We pumped the sample probe extensively to avoid trapped gasses in the coaxial leads, and then cooled the device slowly over two days to eliminate electron-hole pair production in the device (which creates additional electrons in the two-dimensional fluid and a slow downward drift in the magnetic field positions of QHR plateaus as the pairs recombine).
These include, for example, multiphoton pair production from vacuum or light scattering phenomena, such as quantum reflection.
The ratio is greater than 1 at lower energies and goes to unity at LHC energies where the pair production mechanism dominates and complete nuclear transparency effects are observed.
This quark-antiquark annihilation and pair production model predicts the fourth generation of leptons and explains the measurements of neutrino oscillations.
However, my recent feasibility studies indicate that by using the higgs pair production process with four bottom quarks in the final state, the discovery of the di-higgs process and its cross section measurement can be made much earlier.