The spectroscopy of solar sterile neutrinos

Abstract

We predict the sterile neutrino spectrum of some of the key solar nuclear reactions and discuss the possibility of these being observed by the next generation of solar neutrino experiments. By using an up-to-date standard solar model with good agreement with current helioseismology and solar neutrino flux data sets, we found that from solar neutrino fluxes arriving on Earth only 3\%-4\% correspond to the sterile neutrino. The most intense solar sources of sterile neutrinos are the $pp$ and ${}^{7}Be$ nuclear reactions with a total flux of $2.2\times 10^9\mathrm{c}{\mathrm{m}}^2{\mathrm{s}}^{-1}$ and $1.8\times 10^8\mathrm{c}{\mathrm{m}}^2{\mathrm{s}}^{-1}$, followed by the ${}^{13}N$ and ${}^{15}O$ nuclear reactions with a total flux of $1.9\times 10^7\mathrm{c}{\mathrm{m}}^2{\mathrm{s}}^{-1}$ and $1.7\times 10^7\mathrm{c}{\mathrm{m}}^2{\mathrm{s}}^{-1}$. Moreover, we compute the sterile neutrino spectra of the nuclear proton-proton nuclear reactions -- $pp$, $hep$ and ${}^{8}B$ and the carbon-nitrogen-oxygen -- ${}^{13}N$, ${}^{15}O$ and ${}^{17}F$ and the spectral lines of ${}^{7}Be$.

11 pages, 11 figures and 1 table. Open access article

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• The Sun: Light Dark Matter and Sterile Neutrinos
• The Sterile-Active Neutrino Flavor Model: the Imprint of Dark Matter on the Electron Neutrino Spectra
• Exploring nonstandard quark interactions through solar neutrino studies