Nonequilibrium neutrinos and primordial nucleosynthesis

Details Nonequilibrium neutrinos and primordial nucleosynthesis Nonequilibrium neutrinos and primordial nucleosynthesis

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pzetf..56..129d&link_type=abstract

Pis'ma v Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki (ISSN 0370-274X), vol. 56, no. 3-4, p. 129-132.

Statistics

Computation

4

Cosmochemistry, Elementary Particle Interactions, Helium, Neutrinos, Nonequilibrium Thermodynamics, Nuclear Fusion, Abundance, Computational Astrophysics, Kinetic Equations, Universe

Scientific paper

Residual interactions between neutrinos and electrons that have different temperatures after decoupling are shown to result in an appreciable spectral distortion of the order of 1 percent at the higher-energy side of the distribution when the temperature drops to below 1 MeV. However, the resulting modification in the He abundance is small, only of the order of 1.3 x 10 exp -4.

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