55 citations · 160 across the 7 of their papers we have counts for
7 papers
Explaining the Sr and Ba Scatter in Extremely Metal-Poor Stars
Wako Aoki, Takuma Suda, Richard Boyd +2
Compilations of abundances of Strontium and Barium in extremely metal-poor stars show that an apparent cutoff is observed for [Sr/Ba] at [Fe/H]-3.6 and large fluctuations for [F…
The r-Process in Metal Poor Stars and Black Hole Formation
Richard Boyd, Michael Famiano, Bradley Meyer +3
Nucleosynthesis of heavy nuclei in metal-poor stars is generally thought to occur via the r-process because the r-process is a primary process that would have operated early in the…
Supernovae, Neutrinos, and the Chirality of the Amino Acids
R. N. Boyd, T. Kajino, T. Onaka
A mechanism for creating an enantioenrichment in the amino acids, the building blocks of the proteins, that involves global selection of one handedness by interactions between the…
Supernovae and the Chirality of the Amino Acids
R. N. Boyd, T. Kajino, T. Onaka
A mechanism for creating amino acid enantiomerism that always selects the same global chirality is identified, and subsequent chemical replication and galactic mixing that would po…
Effects of Beta-Decays of Excited-State Nuclei on the Astrophysical r-Process
M. A. Famiano, R. N. Boyd, T. Kajino +3
A rudimentary calculation is employed to evaluate the possible effects of beta- decays of excited-state nuclei on the astrophysical r-process. Single-particle levels calculated wit…
Universal Lepton Asymmetry: New Constraints from the Cosmic Microwave Background and Primordial Nucleosynthesis
T. Kajino, M. Orito, G. J. Mathews +1
We study the primordial nucleosynthesis and cosmic age in the presence of a net lepton asymmetry as well as baryon asymmetry. We explore a previously unnoted region of the paramete…