370 citations · 2.9k across the 46 of their papers we have counts for
8 papers · 2 filters
APS Neutrino Study: Report of the Neutrino Astrophysics and Cosmology Working Group
Steve W. Barwick, John F. Beacom, Vince Cianciolo +11
In 2002, Ray Davis and Masatoshi Koshiba were awarded the Nobel Prize in Physics ``for pioneering contributions to astrophysics, in particular for the detection of cosmic neutrinos…
Cosmological Cosmic Rays and the observed Li6 plateau in metal poor halo stars
Emmanuel Rollinde, Elisabeth Vangioni-Flam, Keith A. Olive
Very recent observations of the Li6 isotope in halo stars reveal a Li6 plateau about 1000 times above the predicted BBN abundance. We calculate the evolution of Li6 versus redshift…
Implications of a new temperature scale for halo dwarfs on LiBeB and chemical evolution
Brian D. Fields, Keith A. Olive, Elisabeth Vangioni-Flam
Big bang nucleosynthesis (BBN) and the cosmic baryon density from cosmic microwave background anisotropies together predict a primordial Li7 abundance a factor of 2--3 higher than…
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…
Quintessence Models and the Cosmological Evolution of alpha
Seokcheon Lee, Keith A. Olive, Maxim Pospelov
The cosmological evolution of a quintessence-like scalar field, phi, coupled to matter and gauge fields leads to effective modifications of the coupling constants and particle mass…
A Realistic Determination of the Error on the Primordial Helium Abundance: Steps Toward Non-Parametric Nebular Helium Abundances
Keith A. Olive, Evan D. Skillman
Currently there are two significantly different observational determinations of the primordial helium abundance, and, if only statistical errors in He4 abundance determinations are…