Big Bang Nucleosynthesis: Impact of Nuclear Physics Uncertainties on Baryonic Matter Density

Conference · Thu May 01 00:00:00 EDT 2008

DOI:https://doi.org/10.1063/1.2943606· OSTI ID:1022668

Smith, Michael Scott  ^[1]; Roberts, Luke ^[1]; Hix, William Raphael  ^[1]; Bruner, Blake ^[1]; Kozub, R. L. ^[2]; Tytler, David ^[3]; Fuller, George M. ^[3]; Lingerfelt, Eric J.  ^[1]; Nesaraja, Caroline D.  ^[1]

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1. ORNL
2. Tennessee Technological University (TTU)
3. University of California, San Diego

We performed new Big Bang Nucleosynthesis simulations with the bigbangonline.org suite ofcodes to determine, from the nuclear physics perspective, the highest achievable precision of theconstraint on the baryon-to-photo ratio {eta} given current observational uncertainties. We alsoperformed sensitivity studies to determine the impact that particular nuclear physics measurementswould have on the uncertainties of predicted abundances and on the {eta} constraint.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1022668
• Resource Relation: Journal Volume: 1016; Conference: International Symposium on Origin of Matter and Evolution of Galaxies - Sapporo, , Japan - 12/4/2007 12:00:00 AM-12/7/2007 12:00:00 AM
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCURACY
GALAXIES
NUCLEAR PHYSICS
NUCLEOSYNTHESIS
ORIGIN
SENSITIVITY