Does the Standard Hot-Big-Bang Model Explain the Primordial Abundances of Helium and Deuterium?

Details Does the Standard Hot-Big-Bang Model Explain the Primordial Abundances of Helium and Deuterium? Does the Standard Hot-Big-Bang Model Explain the Primordial Abundances of Helium and Deuterium?

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982phrvl..48..209r&link_type=abstract

Physical Review Letters, Volume 48, Issue 3, January 18, 1982, pp.209-212

Physics

27

Origin, Formation, And Abundances Of The Elements, Elementary Particle Processes, Origin And Formation Of The Universe

Scientific paper

It is shown that according to the standard hot-big-bang nucleosynthesis calculations, no single value of the ratio η of baryon to photon number density can explain the right abundances of both 4He and 2D. A slight neutrino degeneracy, however, provides a testable solution for η which is in conformity with the current estimate of the baryonic component of the density parameter (ΩN)0 of the Universe.

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