منابع مشابه
Neutrino Moments and the Magnetic Primakoff Effect
If different species of neutrinos possess transition magnetic moments, a conversion between species can occur in the Coulomb filed of a nucleus. In the case of Dirac neutrinos this corresponds to an active to sterile conversion, whereas in the case of Majorana neutrinos, the conversion takes place between active species. The conversion cross sections grow with the energy of the incident neutrin...
متن کاملHolstein-Primakoff Realizations on Coadjoint Orbits
We derive the Holstein-Primakoff oscillator realization on the coadjoint orbits of the SU(N + 1) and SU(1, N) group by treating the coadjoint orbits as a constrained system and performing the symplectic reduction. By using the action-angle variables transformations, we transform the original variables into Darboux variables. The Holstein-Primakoff expressions emerge after quantization in a cano...
متن کاملPrimakoff effect in η-photoproduction off protons
We analyse data on forward η-meson photoproduction off a proton target and extract the η→γγ decay width utilizing the Primakoff effect. The hadronic amplitude that enters into our analysis is strongly constrained because it is fixed from a global fit to available γp→pη data for differential cross sections and polarizations. We compare our results with present information on the two-photon η-dec...
متن کاملHenry Ormerod
at the age of 68, belonged to a family of surgeons. He was educated at the Bristol Royal Infirmary and Medical School, and very soon after qualifying he settled at Westbury. Although his capacity for work was immense, yet in the early years of his practice he had more than one attack of haemoptysis, and it was his opinion that leading a country open-air life had been the means of warding off mo...
متن کاملHenry Wellcome
fo'c'sle-study running his naval household with the aid of an Admiralty of natural history suppliers and breeders, as well as experts like Lyell, Hooker and the young Huxley in every port. Beatrice Webb once likened Herbert Spencer to a spider collecting facts on the theoretical web he was spinning; the image equally well suits Darwin. A pleasure to read, this exciting new biography deepens our...
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ژورنال
عنوان ژورنال: Physics Today
سال: 1983
ISSN: 0031-9228,1945-0699
DOI: 10.1063/1.2915406