If the two gamma-quanta emitted on the annihilation of a slowly moving positron-electron pair both undergo a Compton scattering, in view of the fact that they are polarized in perpendicular directions ...

THE work of Compton on X-ray scattering led to the general acceptance of the idea that the scattering of radiation by a material particle is a unitary process in which energy and linear momentum are ...

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3 MRC/UCT Research Unit for Exercise Science and Sports Medicine, University of Cape Town, Cape Town, South Africa 4 Department of Human Biology, Sports Science Institute of South Africa, Cape Town, ...