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Article overview
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Big Bang Nucleosynthesis Calculation | Hannu Kurki-Suonio
; | Date: |
7 Dec 2001 | Subject: | astro-ph hep-ph | Affiliation: | Helsinki | Abstract: | I review standard big bang nucleosynthesis and some versions of nonstandard BBN. The abundances of the primordial isotopes D, He-3, and Li-7 produced in standard BBN can be calculated as a function of the baryon density with an accuracy of about 10%. For He-4 the accuracy is better than 1%. The calculated abundances agree fairly well with observations, but the baryon density of the universe cannot be determined with high precision. Possibilities for nonstandard BBN include inhomogeneous and antimatter BBN and nonzero neutrino chemical potentials. | Source: | arXiv, astro-ph/0112182 | Services: | Forum | Review | PDF | Favorites |
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