  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.

High Energy Physics - Phenomenology;Astrophysics;Nuclear Theory