pair annihilation
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pair-annihilation cross-section — anhiliacijos skerspjūvis statusas T sritis fizika atitikmenys: angl. annihilation cross section; pair annihilation cross section vok. Annihilationsquerschnitt, m; Vernichtungsquerschnitt, m; Vernichtungswirkungsquerschnitt, m rus. сечение… … Fizikos terminų žodynas
pair annihilation — Physics. annihilation (def. 3a) … Useful english dictionary
annihilation — /euh nuy euh lay sheuhn/, n. 1. the act or an instance of annihilating. 2. the state of being annihilated; extinction; destruction. 3. Physics. a. Also called pair annihilation. the process in which a particle and antiparticle unite, annihilate… … Universalium
annihilation cross-section — anhiliacijos skerspjūvis statusas T sritis fizika atitikmenys: angl. annihilation cross section; pair annihilation cross section vok. Annihilationsquerschnitt, m; Vernichtungsquerschnitt, m; Vernichtungswirkungsquerschnitt, m rus. сечение… … Fizikos terminų žodynas
Annihilation — is defined as total destruction or complete obliteration of an object; [ [http://dictionary.reference.com/search?r=2 q=Annihilation Dictionary Definition] (2006) Dictionary.com.] having its root in the Latin nihil (nothing). A literal translation … Wikipedia
Annihilation radiation — is a term used in Gamma spectroscopy for the gamma radiation produced when a particle and Antiparticle collide. Most commonly, this refers to 511 keV gamma rays produced by a gamma ray undergoing Pair production [Knoll, G: Radiation Detection and … Wikipedia
pair production — Physics. the simultaneous creation of a particle and its antiparticle by a nucleus or particle in an excited state, as when a photon is absorbed. [1930 35] * * * Formation of an electron and a positron from high energy electromagnetic radiation… … Universalium
Pair production — Light–matter interaction Low energy phenomena … Wikipedia
annihilation radiation — noun : radiation produced by the mutually annihilating coalescence of an electron and a positron from which two radiation quanta travel in opposite directions with a wavelength corresponding to that of very short gamma rays, being approximately 0 … Useful english dictionary
annihilation radiation — Physics. electromagnetic radiation produced by the coalescence and mutual annihilation of a positron and an electron, each pair forming two photons having a minimum energy of 0.5 million electron volts each. [1960 65] * * * … Universalium
