Klein-Nishina formula
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English[edit]
Etymology[edit]
Named after Oskar Klein and Yoshio Nishina who derived the equation in 1928.
Proper noun[edit]
- (particle physics) A formula for the differential cross section of photons scattered from a single free electron, calculated in the lowest order of quantum electrodynamics: where is the classical electron radius, is the ratio of the wavelengths of the incident and scattered photons, and is the scattering angle (0 for an undeflected photon).
Further reading[edit]
- Klein-Nishina formula on Wikipedia.Wikipedia