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Abstract <p>In addition to the proton–proton (<i>pp</i>) chain consisting only of isotopes of hydrogen and helium fusion of hydrogen into helium occurs in stars through the carbon-nitrogen-oxygen (CNO) cycle, in which the nuclear synthesis is catalyzed by C, N, and O nuclei. The CNO cycle produces only 1% of all solar energy and it is secondary for the Sun. However, for more massive and hot stars this cycle is dominant. In 2020–2023 the international Borexino collaboration presented results on first detection of neutrinos emitted in CNO cycle reactions on the Sun. The research also obtained results on measuring the beta spectrum of <sup>210</sup>Bi, knowing which is necessary to register the signal from CNO neutrinos.</p>

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Detecting Solar CNO Neutrinos Using the Borexino Detector

  • 期刊论文

  • 发表日期：

    2025年6月27日

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  • A. V. Derbin

摘要

Abstract

In addition to the proton–proton (pp) chain consisting only of isotopes of hydrogen and helium fusion of hydrogen into helium occurs in stars through the carbon-nitrogen-oxygen (CNO) cycle, in which the nuclear synthesis is catalyzed by C, N, and O nuclei. The CNO cycle produces only 1% of all solar energy and it is secondary for the Sun. However, for more massive and hot stars this cycle is dominant. In 2020–2023 the international Borexino collaboration presented results on first detection of neutrinos emitted in CNO cycle reactions on the Sun. The research also obtained results on measuring the beta spectrum of 210Bi, knowing which is necessary to register the signal from CNO neutrinos.