Experimental evidence of neutrinos produced in the CNO fusion cycle in the Sun (Nature cover story)

For most of their existence, stars are powered by fusion of hydrogen into helium via two processes that are well understood theoretically: the proton–proton chain, dominant in relatively small stars like our Sun, and the Carbon–Nitrogen–Oxygen cycle, which is prevalent in bigger, more massive stars. Borexino got the first experimental evidence of neutrinos emitted by the CNO cycle in the Sun core.

Comprehensive measurement of pp-chain solar neutrinos

 Comprehensive measurement of pp-chain solar neutrinos Nature volume 562, pages 505–510 (2018) Published: 24 October 2018 [doi:10.1038/s41586-018-0624-y] (full text here) Data availability The datasets generated during the current study are freely available: see below.  Additional information is available from the Borexino Collaboration

Neutrinos from the primary proton-proton fusion process in the Sun

Neutrinos from the primary proton-proton fusion process in the Sun Nature 512, 383-386 (28 August 2014) doi:10.1038/nature13702 Data availability: The datasets generated during the current study are freely available (see below). Additional information is available from the Borexino Collaboration spokesperson (spokesperson-borex@lngs.infn.it)