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Neutrino against caries

02.10.2015

American scientists from the Indiana University in Bloomington and the University of Southern Utah have found that the trillions of neutrinos that permeate the human body every second without harm to health are involved in the formation of most of the fluorine in the universe.

Fluorine occupies a place in the periodic table between oxygen and neon, but it is relatively rare in the Universe. To find out its origin, astronomers examined 79 stars using the 2,1-meter telescope of the Kitt Peak National Observatory in the Arizona desert (USA).

Scientists have been trying to find hydrogen fluoride that can absorb infrared radiation and leave a mark on the star's radiation spectrum. As a result, fluorine was found on 51 stars, and its source, based on the concentration, can only be neutrinos that create this element during supernova explosions.

During this process, a fair amount of neutrinos are released - about 10 to the 58th power. Some particles manage to knock out a proton or neutron from some of the nuclei of neon atoms in stars, resulting in the formation of fluorine.

It turns out that neutrinos have made a great contribution to the fight against caries, because it is fluorine that is the main element of toothpastes. However, some people do not agree with the conclusions of astronomers: scientists from the Lund Observatory (Sweden) have previously discovered a much lower concentration of fluorine in the stars.

Swedish astronomers believe that fluorine is formed not at all because of neutrinos, but as a result of nuclear reactions of red giants that burn hydrogen and helium. The truth can be established by correctly determining the temperature of the studied stars.

Hydrogen fluoride decays at high temperatures, so the spectra of warm stars show less fluorine than the spectra of cold ones. Scientists observing the discussion from the outside note that it is the neutrinos of supernovae that provide the Earth with the presence of up to 2/3 of the amount of fluorine and, therefore, provide people with protection from caries.

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