What potassium abundance in the Earth does the Borexino experiment admit?

L. B. Bezrukov; Безруков Л. Б.; I. S. Karpikov; Карпиков И. С.; A. K. Mezhokh; Межох А. К.; S. V. Silaeva; Силаева С. В.; V. V. Sinev; Синев В. В.

doi:10.31857/S0367676523701867

What potassium abundance in the Earth does the Borexino experiment admit?

Authors: Bezrukov L.B.¹, Karpikov I.S.¹, Mezhokh A.K.¹, Silaeva S.V.¹, Sinev V.V.¹
Affiliations:
1. Institute for Nuclear Research of the Russian Academy of Sciences
Issue: Vol 87, No 7 (2023)
Pages: 1042-1044
Section: Articles
URL: https://journals.rcsi.science/0367-6765/article/view/135446
DOI: https://doi.org/10.31857/S0367676523701867
EDN: https://elibrary.ru/OSZFLR
ID: 135446

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Abstract

The results of analysis for the single events energy spectrum obtained in phase III of Borexino detector operation are considered. The experimental spectrum was fitted by a set of standard single events sources with the addition of events from potassium geo-antineutrinos (⁴⁰K-geo-v) scattering on electrons. The addition of ⁴⁰K-geo-v events makes it possible to improve the agreement of the experimental and fitted spectra. Experimental results indicate the presence of a significant amount of potassium in the Earth.

References

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