Bulletin of Taras Shevchenko National University of Kyiv. Astronomy, no. 66, p. 5-7 (2022)

Cosmic neutrino from the decay of the scalaron dark matter

Yu. Shtanov, Dr Hab.
Bogolyubov Institute for Theoretical Physics
of the National Academy of Sciences of Ukraine, Kyiv, Ukraine,
Taras Shevchenko National University of Kyiv, Kyiv, Ukraine


The scalaron dark mater in F(R) gravity theory can decay into pairs of massive neutrino. We calculate the corresponding decay width and the current neutrino abundance and spectrum in the universe. The obtained neutrino flux turns out to be very small compared to the solar neutrino flux at Earth at similar energies.

Key words
Modified gravity, dark matter, neutrino.


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DOI: https://doi.org/10.17721/BTSNUA.2022.66.5-7