Spectrum of electronic antineutrinos from a nuclear reactor and test of the theory of electroweak interaction
Ketov S. N. , Kopeikin V. I. , Mikaelyan L. A., Tolokonnikov S. V.
A statistical base of78 000 events of the inverse β decay detected at the Rovno nuclear power station was used to measure the absolute spectrum of electronic antineutrinos ve. This spectrum must be known to test experimentally the theory of electroweak interaction in the electronic-antineutrino spectrum that has not been studied adequately. Some "recommended" cross sections for the interaction of ve with the deuterons in the neutral and charged current channels and the cross section for the ve -e scattering are given.
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![](/ps/1092/article_16487_800_head.png "<b>A statistical base of78 000 events of the inverse </b><i>β </i><b>decay detected at the Rovno nuclear power station was used to measure the absolute spectrum of electronic antineutrinos </b><i>v<sub>e</sub></i><b>. This spectrum must be known to test experimentally the theory of electroweak interaction in the electronic-antineutrino spectrum that has not been studied adequately. Some "recommended" cross sections for the interaction of </b><i>v<sub>e</sub> </i><b>with the deuterons in the neutral and charged current channels and the cross section for the </b><i>v<sub>e</sub> -e </i><b>scattering are given.</b>")