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arXiv · 2007.07371

On first detection of solar neutrinos from CNO cycle with Borexino

L. B. Bezrukov·I. S. Karpikov·A. S. Kurlovich·A. K. Mezhokh·S. V. Silaeva·V. V. Sinev·V. P. Zavarzina
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Abstract

Borexino collaboration reported about first measurement of solar CNO-$\nu$ interaction rate in Borexino detector. This result is consistent with Hydridic Earth model prediction about the contribution of $^{40}$K geo-antineutrino interactions in single Borexino events. The potassium abundance in the Earth in the range $1 \div 1.5$\% of the Earth mass could give the observed enhancement of counting rate above expected CNO-$\nu$ counting rate. The Earth intrinsic heat flux must be in the range $200 \div 300$ TW for this potassium abundance. This value of the heat flux can explain the ocean heating observed by the project ARGO. We consider that Hydridic Earth model actually corresponds better to CNO-$\nu$ Borexino results than Silicate Earth model.

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L. B. Bezrukov, I. S. Karpikov, A. S. Kurlovich, A. K. Mezhokh, S. V. Silaeva, V. V. Sinev, V. P. Zavarzina. 2020-07-14. On first detection of solar neutrinos from CNO cycle with Borexino. https://doi.org/10.3103/s1062873821040067

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