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Primordial Nucleosynthesis: Theory and Observations

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arxiv astro-ph/9905320 v1 pith:2KPUFJRX submitted 1999-05-25 astro-ph hep-ph

Keith A. Olive , Gary Steigman , Terry P. Walker This is my paper · ORCID
classification astro-phhep-ph
keywords nucleosynthesisprimordialbangabundancesbaryonscomparecomparisonconsistency
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We review the Cosmology and Physics underlying Primordial Nucleosynthesis and survey current observational data in order to compare the predictions of Big Bang Nucleosynthesis with the inferred primordial abundances. From this comparison we report on the status of the consistency of the standard hot big bang model, we constrain the universal density of baryons (nucleons), and we set limits to the numbers and/or effective interactions of hypothetical new "light" particles (equivalent massless neutrinos).

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Cited by 3 Pith papers

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  1. Mapping the Universe as a Bianchi I cosmology with Gaia data

    astro-ph.CO 2026-05 unverdicted novelty 5.0 of 10

    Gaia quasar proper motions show a significant quadrupole signal matching an axisymmetric Bianchi I anisotropy model, but the amplitude does not increase with redshift as the model requires and the inferred local shear...

  2. Improved Big Bang Nucleosynthesis constraints on decaying massive relics

    hep-ph 2026-05 unverdicted novelty 4.0 of 10

    Updated exclusion contours on lifetime, mass and abundance of decaying BSM relics from refined BBN modeling of hadronic and electromagnetic injections across multiple two-body channels.

  3. BBN-simple: How to Bake a Universe-Sized Cake

    astro-ph.CO 2024-12 conditional novelty 3.0 of 10

    BBN-simple, a from-scratch BBN code with a 12-reaction network and simplified inputs, reproduces light element abundances to within about 1-15% of professional BBN codes.

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