996 citations · 4k across the 32 of their papers we have counts for
12 papers · 1 filter
A Bitter Pill: The Primordial Lithium Problem Worsens
Richard H. Cyburt, Brian D. Fields, Keith A. Olive
The lithium problem arises from the significant discrepancy between the primordial 7Li abundance as predicted by BBN theory and the WMAP baryon density, and the pre-Galactic lithiu…
Bound-State Effects on Light-Element Abundances in Gravitino Dark Matter Scenarios
Richard H. Cyburt, John Ellis, Brian D. Fields +2
If the gravitino is the lightest supersymmetric particle and the long-lived next-to-lightest sparticle (NSP) is the stau, the charged partner of the tau lepton, it may be metastabl…
New BBN limits on Physics Beyond the Standard Model from He4
Richard H. Cyburt, Brian D. Fields, Keith A. Olive +1
A recent analysis of the He4 abundance determined from observations of extragalactic HII regions indicates a significantly greater uncertainty for the He4 mass fraction. The derive…
Primordial Nucleosynthesis for the New Cosmology: Determining Uncertainties and Examining Concordance
Richard H. Cyburt
Big bang nucleosynthesis (BBN) and the cosmic microwave background (CMB) have a long history together in the standard cosmology. The general concordance between the predicted and o…
Solar Neutrino Constraints on the BBN Production of Li
Richard H. Cyburt, Brian D. Fields, Keith A. Olive
Using the recent WMAP determination of the baryon-to-photon ratio, 10^{10} η= 6.14 to within a few percent, big bang nucleosynthesis (BBN) calculations can make relatively accurate…
Precision Primordial He Measurement with CMB Experiments
Greg Huey, Richard H. Cyburt, Benjamin D. Wandelt
Big bang nucleosynthesis (BBN) and the cosmic microwave background (CMB) are two major pillars of cosmology. Standard BBN accurately predicts the primordial light element abundance…