beta decay
noun Date: 1931 a radioactive nuclear transformation governed by the weak force in which a nucleon (as a neutron) changes into a nucleon (as a proton) of the other type with the emission of either an electron and an antineutrino or a positron and a neutrino

New Collegiate Dictionary. 2001.

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  • beta decay — beta skilimas statusas T sritis fizika atitikmenys: angl. beta decay; beta particle decay; beta particle disintegration vok. Beta Umwandlung, f; Beta Zerfall, m rus. бета распад, m pranc. désintégration bêta, f; transformation bêta, f;… …   Fizikos terminų žodynas

  • beta decay — beta skilimas statusas T sritis apsauga nuo naikinimo priemonių apibrėžtis Savaiminis branduolio virsmas, kai branduolys spinduliuoja elektroną arba pozitroną. Beta skilimo metu atsiranda naujo elemento branduolys, nepakitus masės skaičiui.… …   Apsaugos nuo naikinimo priemonių enciklopedinis žodynas

  • beta decay — beta skilimas statusas T sritis Standartizacija ir metrologija apibrėžtis Beta dalelės išspinduliavimas iš radioaktyviojo atomo branduolio. atitikmenys: angl. beta decay vok. Beta Zerfall, m rus. бета распад, m pranc. désintégration bêta, f …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • beta decay — beta skilimas statusas T sritis chemija apibrėžtis Beta dalelės išspinduliavimas iš radioaktyviojo atomo branduolio. atitikmenys: angl. beta decay; beta desintegration; beta particle desintegration rus. бета распад …   Chemijos terminų aiškinamasis žodynas

  • beta decay — n. radioactive disintegration of a nucleus with the accompanying emission of a beta particle: the residual nucleus has one more unit of positive charge after electron emission and one less after positron emission …   English World dictionary

  • Beta decay — Nuclear physics Radioactive decay Nuclear fission Nuclear fusion Classical decays …   Wikipedia

  • beta decay — Physics. a radioactive process in which a beta particle is emitted from the nucleus of an atom, raising the atomic number of the atom by one if the particle is negatively charged, lowering it by one if positively charged. [1930 35] * * * Any of… …   Universalium

  • beta decay — noun radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particle • Hypernyms: ↑decay, ↑radioactive decay, ↑disintegration * * * ˈbeta decay 7 [beta decay] noun …   Useful english dictionary

  • beta decay — be′ta decay n. phs a radioactive process in which a beta particle is emitted from the nucleus of an atom • Etymology: 1930–35 …   From formal English to slang

  • beta decay — noun radioactive decay in which an electron is emitted …   English new terms dictionary

  • beta decay — noun A nuclear reaction in which a beta particle (electron or positron) is emitted …   Wiktionary

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