449 citations · 1.7k across the 20 of their papers we have counts for
4 papers · 1 filter
Constraints on the Cosmological Relativistic Energy Density
Andrew R. Zentner, Terry P. Walker
We discuss bounds on the cosmological relativistic energy density as a function of redshift, reviewing the big bang nucleosynthesis and cosmic microwave background bounds, updating…
Stellar Mixing and the Primordial Lithium Abundance
M. H. Pinsonneault, G. Steigman, T. P. Walker +1
We compare the properties of recent samples of the lithium abundances in halo stars to one another and to the predictions of theoretical models including rotational mixing, and we…
Production of A=6,7 Nuclides in the Alpha + Alpha Reaction and Cosmic Ray Nucleosynthesis
David J. Mercer, Sam M. Austin, J. A. Brown +6
Cross sections for production of 6He, 6Li, 7Li, and 7Be in the alpha+alpha reaction were measured at bombarding energies of 159.3, 279.6, and 619.8 MeV, and are found to decrease r…
How Does CMB + BBN Constrain New Physics?
James P. Kneller, Robert J. Scherrer, Gary Steigman +1
Recent cosmic microwave background (CMB) results from BOOMERANG, MAXIMA, and DASI provide cosmological constraints on new physics that can be competitive with those derived from Bi…