Tritium chain of the hydrogen cycle of thermonuclear reactions in the solar interior

Details Tritium chain of the hydrogen cycle of thermonuclear reactions in the solar interior Tritium chain of the hydrogen cycle of thermonuclear reactions in the solar interior

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011astl...37..281g&link_type=abstract

Astronomy Letters, Volume 37, Issue 4, pp.281-285

Astronomy and Astrophysics

Astronomy

Sun, Standard Solar Models, Hydrogen-Cycle Chains, Solar Neutrino Fluxes, Neutrino Energy Spectra

Scientific paper

The tritium chain of the hydrogen cycle on the Sun including the reactions 3He(e-, ν e) 3H(p, γ)4He is considered. The flux of tritium neutrinos at a distance of 1 AU is 8.1 × 104 cm-2 s-1. It exceeds the neutrino flux from the (hep)-reaction by one order of magnitude. The radial distribution of the yield of 3H neutrinos inside the Sun and their energy spectrum, which has the form of a line at an energy of 2.5-3.0 keV, have also been calculated. The flux of thermal tritium neutrinos is accompanied by a very weak flux of antineutrinos (˜103 cm-2 yr-1) with an energy below 18.6 keV. These antineutrinos are produced in the URCA processes 3He ⇆ 3H.

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