Fission Cycling in Supernova Nucleosynthesis: Active-Sterile Neutrino Oscillations
High Energy Physics - Phenomenology
2009-11-11 v2 Astrophysics
Nuclear Theory
Abstract
We investigate nucleosynthesis in the supernovae post-core bounce neutrino-driven wind environment in the presence of active-sterile neutrino transformation. We consider active-sterile neutrino oscillations for a range of mixing parameters: vacuum mass-squared differences of 0.1 eV^2 < dm^2 < 100 eV^2, and vacuum mixing angles of sin^2(2 theta_v) > 10^-4. We find a consistent r-process pattern for a large range of mixing parameters that is in rough agreement with the halo star CS 22892-052 abundances and the pattern shape is determined by fission cycling. We find that the allowed region for the formation of the r-process peaks overlaps the LSND and NSBL (3+1) allowed region.
Keywords
Cite
@article{arxiv.hep-ph/0602012,
title = {Fission Cycling in Supernova Nucleosynthesis: Active-Sterile Neutrino Oscillations},
author = {J. Beun and G. C. McLaughlin and R. Surman and W. R. Hix},
journal= {arXiv preprint arXiv:hep-ph/0602012},
year = {2009}
}
Comments
11 pages, 7 figures, Corrected Typos